A Complete Guide to Jewellery Repairs in London

Your favourite ring has lost a stone. The clasp on your grandmother's necklace finally gave way. Or perhaps years of daily wear have left your once-gleaming bracelet looking dull and misshapen. Whatever the issue, finding the right professional to restore your precious pieces is a decision that deserves careful thought.

London is home to hundreds of jewellers and repair specialists, but not all of them offer the same level of skill, service, or value. Knowing where to look, what to ask, and what to expect can mean the difference between a perfectly restored heirloom and a botched repair you will regret.

This guide covers everything you need to know about jewellery repairs in London, from understanding the most common types of repairs and how each one is assessed and quoted to the standards a fine jewellery workshop should meet and the questions worth asking before handing over your valuables. Whether you are dealing with a simple resize or a complex restoration, this list will give you the confidence to make the right choice and ensure your jewellery receives the expert care it deserves.

Common Jewellery Repairs and What They Actually Involve

Not every piece that arrives in our workshop is broken beyond recognition. More often, what we see are the quiet signs of a well-loved life: a ring that no longer slips over a knuckle, a claw worn paper-thin, a clasp that falters under the weight of a cherished bracelet. Understanding what each repair genuinely involves helps you make informed decisions about your jewellery, and ensures nothing precious is ever lost through neglect.

1. Ring Resizing

Ring resizing is one of the most frequently requested services we undertake, and the process differs considerably depending on whether a ring needs to go up or down in size. Sizing down involves removing a small section of the shank, carefully bringing the two ends together, and re-soldering the join before refinishing the surface to an invisible result. Sizing up requires the addition of new metal, forged to match the original alloy and colour exactly, then seamlessly integrated into the existing band. Both directions are influenced by shank thickness (a very fine shank has limited material to work with), the setting style (pavé, channel-set, and full eternity rings all restrict how much the circumference can change without compromising stone security), and the metal itself. Platinum, for example, requires higher heat and specialist solder, while 9ct gold behaves very differently from 18ct. A master goldsmith will assess all of these variables before committing to any alteration.

2. Claw Retipping and Full Claw Replacement

Claws are the slender fingers of metal that hold your stones in place, and they wear gradually with everyday contact. When a claw becomes thin, cracked, or develops a hairline fracture, the stone it secures is at genuine risk of loss. Our goldsmiths inspect each claw individually under magnification, assessing its remaining thickness and structural integrity rather than treating the setting as a uniform whole. Where sufficient metal remains, retipping adds a small quantity of new material to the tip, restoring its grip. Where a claw is cracked at the base or so worn that there is simply not enough metal to hold a gemstone securely, a full rebuild is required. Prong wear is among the leading causes of stone loss, which makes early assessment far less costly than stone replacement after the fact.

3. Chain Soldering and Link Repair

Chain repair demands a precise understanding of structure and metal behaviour. A trace chain, with its uniform oval links, is soldered differently from the interlocking pattern of a belcher, the alternating rhythms of a figaro, or the tightly wound helical construction of a rope chain. Each style presents its own access challenges and heat distribution considerations. White gold requires a matched white solder and careful temperature control to avoid discolouration at the join, while platinum demands an even higher working temperature and platinum-grade solder to maintain the integrity of the surrounding metal. An incorrectly soldered platinum chain will show a visible seam or, worse, fail at the repair point under tension.

4. Stone Replacement and Resetting

When a stone is lost, sourcing a match is a meticulous process guided by the four Cs: Cut, Colour, Clarity, and Carat. Our GIA-certified specialists work with trusted stone dealers to identify a replacement that sits invisibly within the existing piece, maintaining the visual harmony of the original design. This process is distinct from rebuilding a damaged setting entirely. If the original collet, bezel, or claw structure is worn beyond repair or has been incorrectly worked on previously, the goldsmith must reconstruct the setting from scratch before any stone can be placed.

5. Rhodium Plating and Metal Refinishing

White gold is, by nature, a pale yellow alloy. The bright white finish associated with white gold jewellery comes from a thin layer of rhodium, a platinum-group metal, applied through electroplating. With regular wear, this layer gradually abrades, and the warmer undertone of the base alloy begins to show through, typically within one to three years depending on how the piece is worn. Replating restores the original brightness immediately. Surface polishing, however, requires a more considered approach on vintage and antique pieces, where original surface textures, hand-engraved details, or oxidised finishes must be preserved rather than buffed away. A contemporary piece can tolerate a full mechanical polish; a Georgian mourning ring cannot.

6. Clasp Repair and Replacement

A failing clasp is not merely an inconvenience; it is the most preventable cause of jewellery loss. The correct clasp specification for any piece depends on its weight, construction, and how it is worn. A lightweight trace chain may suit a simple lobster clasp, while a heavy tennis bracelet demands a box clasp with a safety tongue, engineered to bear the load without fatigue over time. Trigger clasps on fine necklaces often wear at the spring mechanism, which can be replaced without disturbing the rest of the chain. We always recommend bringing bracelets and necklaces in for a clasp assessment if there is any sense of resistance or looseness in the fitting, well before the piece is put at risk.

A Fine Jewellery Workshop Versus a High-Street Repair Service

Not all repair services are equal, and understanding the difference between a fine jewellery workshop and a high-street service could be the most important decision you make before handing over a cherished piece.

What Happens to Your Piece After You Leave

Many high-street jewellers do not employ a goldsmith on the premises. When you leave a ring at the counter, it is frequently packaged and sent to a third-party trade workshop rather than worked on where you left it. The outsourced goldsmith, who may be servicing multiple retailers simultaneously, receives a written description rather than a personal briefing and works at pace to keep costs commercially viable. In this arrangement, the economics incentivise volume, not precision. Mix-ups between pieces from different shops are an acknowledged risk, and the chain of oversight between customer, retailer, and goldsmith is long and impersonal.

At Griffin and Co, every repair is handled within our own on-site workshop. The piece moves from safe to bench and back again, never leaving our care. Most repairs take 14 to 21 working days from drop-off, while a simple chain solder or a straightforward resize can often be turned around within a few working days. There is no handover to an unknown third party and no production-line compromise.

Why Fine Jewellery Demands Specialist Knowledge

A ring set with a cluster of old-cut diamonds, a platinum band, or a piece containing heat-sensitive coloured gemstones requires more than general competence. Platinum, for instance, has a significantly higher melting point than gold and demands different solder, different technique, and a calibrated approach to temperature management. A diamond's prong geometry must be assessed in context: retipping a claw without understanding how the setting was originally constructed can introduce new risks to the stone's security.

This is precisely where GIA-certified diamond specialists make a meaningful difference. Our team at Griffin and Co brings its full combined experience to every piece that enters the workshop. That depth of knowledge matters when the piece in question is a sapphire-set Edwardian ring from Surrey, a platinum solitaire commissioned in Chichester, or a lab-grown diamond piece requiring the same meticulous care as its natural counterpart.

A Quote Should Follow an Assessment, Not a Price List

Flat-rate pricing cannot account for the variables that govern every repair: the metal's condition, the number and type of stones present, the structural complexity of the setting, and the degree of wear involved. A responsible workshop examines a piece thoroughly before quoting. At Griffin and Co, we clean and assess each item before providing a considered estimate, because the work must fit the piece, not a standardised tariff.

The Consultation Your Piece Deserves

Handing over an inherited ring or a piece tied to a significant moment in your life is not a transactional event. It calls for a private consultation, not a drop-off counter. Meeting the goldsmith, describing the history of the piece, and receiving a considered response is both a practical safeguard and an acknowledgement of what the piece means to you. Clients across Guildford, Richmond, and West Sussex regularly visit our Chichester showroom for precisely this reason; for those further afield, a home visit consultation can be arranged.

The Standards Worth Insisting On

Where jewellery repairs are concerned, the standards that matter are straightforward: genuine, verifiable client reviews you can trace to their source, named craftspeople, transparent process documentation, and the straightforward ability to meet the person who will work on your piece. These are not small details. They are the markers of a workshop that stands behind its work and understands that behind every repair is something irreplaceable. Every one of them applies at Griffin and Co's workshop at 64 South Street, Chichester, where you are welcome to meet the goldsmith who will carry out the work before anything is agreed.

The Questions Worth Asking Before Handing Over Your Piece

Knowing which questions to ask before entrusting a cherished piece to a goldsmith is one of the most valuable things an informed client can do. The six questions below are not intended to interrogate or unsettle a craftsperson; they are questions we welcome, and ones we are glad to answer in full before any work is agreed.

Is the repair carried out in your own workshop, or sent elsewhere?

This is the single most important question you can ask, and the answer will tell you almost everything you need to know. The majority of high-street jewellers do not employ an on-site goldsmith; instead, pieces are posted to trade repair workshops, where a single craftsperson may be servicing several retailers simultaneously. Your heirloom ring joins a queue alongside hundreds of other pieces, with no direct line of accountability between you and the person handling it. The practical consequences include longer turnaround times and a genuine risk of items being confused with other customers' pieces in transit. An on-site workshop, such as the one at Griffin and Co's Chichester showroom, eliminates that chain entirely.

Can I meet the goldsmith or see the workshop?

A reputable independent workshop should welcome this request without hesitation. The ability to introduce a named goldsmith working on the premises is a meaningful signal of transparency and confidence in the craft. If the response is evasive, or no goldsmith can be produced, that evasion is itself informative; it strongly suggests the work is outsourced. Where there is a genuine on-site craftsperson, nothing is lost in translation between your brief and the finished repair, because the person who assesses your piece is the same person who restores it.

Will the repair affect the hallmark, and will you re-hallmark if required?

In the United Kingdom, it is a legal requirement that precious metal articles sold or described in the course of trade above minimum weight thresholds carry a recognised hallmark. When metal is added to a piece, such as when sizing a ring upward, new alloy is introduced and the existing hallmark may no longer accurately represent the whole item. In such cases, the piece should be submitted to one of the UK's four Assay Offices for re-hallmarking. The London Assay Office, operated by the Goldsmiths' Company at Goldsmiths' Hall, is the relevant authority for many London-area clients. A hallmark is not merely decorative; it is legal assurance of metal fineness and essential documentation for insurance valuations and future resale. Any goldsmith who cannot clearly explain this obligation warrants caution.

How will you protect the stones during metalwork?

This is a technically specific question, and asking it marks you as an informed client. Heat from soldering or ring-sizing can fracture, discolour, or permanently damage certain gemstones, particularly emeralds, opals, pearls, and many treated stones. A competent goldsmith should explain their process clearly: whether they use heat-shield compounds, whether stones are removed and reset for particular repair types, and which stones in your specific piece carry the greatest risk. Any reputable jeweller will assess stones before beginning metalwork. For pavé or channel-set pieces, where removing individual stones is often impractical, alternative heat-management techniques become essential, and your goldsmith should be able to describe them precisely.

Do you have experience with this type of piece or setting style?

This question matters most for antique, vintage, and period jewellery. Setting styles such as coronet, collet, milgrain and old-cut pavé require knowledge well beyond general goldsmithing, including an understanding of Victorian and Edwardian construction methods, historically sympathetic solder alloys, and the limits of what fragile period metalwork can withstand. Asking about specific experience is not an imposition; a skilled craftsperson will welcome the conversation and use it to demonstrate their understanding of your piece's particular character and era.

Will you provide a written assessment and quote before beginning any work?

No reputable goldsmith should begin work on a fine jewellery piece without a documented agreement in place. A written quote should specify the exact work to be carried out, the metal alloy and fineness if new metal is being introduced, whether stones will be removed and reset, and the agreed price. A thorough written assessment will also note any pre-existing damage or fragility, protecting both you and the craftsperson from misunderstandings on collection. At Griffin and Co, every repair begins with precisely this process; a private consultation, a clear written scope, and your full agreement before a single tool is lifted.

How Griffin and Co Serves London Clients for Jewellery Repairs

For London clients seeking professional jewellery repairs, geography need not be a barrier. Griffin and Co has built a service infrastructure designed to meet clients wherever they are, whether that means visiting our Chichester showroom, receiving a goldsmith at home, or initiating an enquiry from a desk in the city.

Reaching Griffin and Co From London

Our Chichester showroom is a direct train from London Victoria, making it a practical destination for anyone seeking an in-person assessment of a piece requiring more complex restoration work. For clients across Richmond, Guildford and the wider South East who would rather not make the journey, our home-visit consultation brings the same specialist assessment to your door, and a postal repair route is available for those further afield.

The Chichester Workshop at the Heart of It All

Every repair undertaken by Griffin and Co passes through the on-site workshop at 64 South Street, Chichester, where the work is carried out by the firm's own goldsmiths. This matters considerably. When a piece travels from showroom to workshop, it remains entirely within Griffin and Co's care; there is no handoff to an anonymous third-party repair centre, no loss of context, and no dilution of the standards applied to the work. For clients seeking antique jewellery restoration in London or claw retipping across Surrey, knowing that a piece will be handled by the same team of skilled craftspeople, backed by the combined experience of our workshop, provides a level of assurance that a high-street referral simply cannot replicate.

Home Visits for Clients Who Prefer Not to Travel

For those who would rather not transport a valuable or fragile piece, a private home visit consultation offers a considered alternative. This is particularly appropriate for heirloom or antique pieces where the provenance and condition warrant careful initial handling, for high-value items where the client prefers the reassurance of a face-to-face meeting in their own environment, or for clients with accessibility requirements that make showroom visits less straightforward. Arranging a consultation through Griffin and Co's booking system allows clients to discuss the most suitable appointment format before any commitment is made.

Starting the Process Online

For many clients, beginning a repair enquiry online is simply the most convenient starting point. Clients seeking jewellery repairs in Richmond or claw retipping in Surrey can begin the process by submitting photographs and a description of their piece through Griffin and Co's online enquiry pathway, receiving an initial assessment before deciding whether to visit in person or explore the postal route. For London and wider UK clients who prefer to send pieces securely, Griffin and Co can advise on appropriate insured packaging and will confirm receipt upon arrival at the workshop. Full details on how to begin, and on the route best suited to your piece, are available from our team at the Chichester workshop.

Jewellery Repair Costs in London: What Affects the Price

Understanding what actually drives the cost of a jewellery repair helps you plan with confidence, though the honest answer is that no repair can be priced accurately until the piece has been seen. Every piece that arrives in our workshop is assessed individually, and a formal quote is always provided before any work begins.

Every Repair Is Quoted Individually

Griffin and Co does not work to a fixed price list. Every repair, from a straightforward resize to the rebuilding of a worn setting or the replacement of a lost stone, is quoted individually once the piece has been examined in our workshop. It is genuinely not possible to give an accurate figure without seeing the piece: the metal, the setting, the stones present and the degree of wear all change the scope of the work.

London clients are welcome to send photographs and a description ahead of an assessment, but any figure offered before the piece is in hand can only ever be provisional. To arrange an assessment and receive a considered quote for your own piece, get in touch with our team.

What Drives the Cost Upward

Several variables compound to determine the final price of any repair. Metal type is typically the most significant factor: silver is the most straightforward to work; gold requires careful heat management and greater skill; platinum is the most demanding of all, commanding the highest labour rates and the longest turnaround. Beyond metal type, setting style matters considerably. Pavé and channel-set designs require protecting multiple small stones during any metalwork, which slows the process and demands a higher level of precision. A plain platinum band and a pavé-set platinum eternity ring may both need resizing, but they represent entirely different scopes of work.

The age and condition of the piece also plays a meaningful role. Vintage and antique jewellery often requires specialised handling, and pieces that have been neglected for some time tend to present additional complications. Many jewellery owners delay repairs, and what might have been a straightforward retipping can become a far more involved restoration by the time the piece reaches a goldsmith. Stone quality and replacement cost are further considerations; if a damaged stone cannot be retained and must be sourced anew, the material cost will naturally reflect current market conditions. Prevailing metal prices are likewise embedded in every repair involving added metal.

Why Flat-Rate Pricing Should Give You Pause

Any workshop offering standardised pricing without first examining your piece is, knowingly or otherwise, making a commitment it cannot fully honour. Fine jewellery repair is not a commodity service. Scope can only be understood once the piece is in hand, under magnification, assessed for metal fatigue, stone security and structural integrity. Workshops that skip this step risk underestimating the work involved, applying additional charges once the job is underway, or rushing to meet a fixed-price commitment in a way that compromises quality. A reputable goldsmith will always assess before quoting.

Repair as an Investment, Not an Expense

For inherited pieces or fine jewellery with sentimental value, the question is rarely whether repair is worth it. Replacement, where it is even possible, is almost always far more costly than restoration, and for heirloom pieces it is often not possible at all. Viewed through this lens, jewellery repair is not an expense but a considered investment in preserving something irreplaceable.

Lab-Grown Diamond Settings Require Equal Care

A growing number of London clients own pieces set with lab-grown diamonds. Lab-grown diamonds are physically and optically identical to mined diamonds and their settings require precisely the same level of professional care. Griffin and Co's goldsmiths work with both to precisely the same standard, whether your piece comes to our Chichester workshop or we come to you on a home visit. The price of gold feeds directly into the cost of any repair that adds metal, and that holds true whether the stones in the setting were grown in a laboratory or formed in the earth.

To begin with an honest assessment of your piece, book a private consultation at our Chichester showroom, or request a home visit at your convenience.

Antique and Heirloom Jewellery Repairs: A Specialist Discipline

Antique and heirloom pieces occupy a category entirely apart from modern jewellery repair. Where a contemporary ring presents known alloy compositions, standardised gauge thicknesses, and familiar setting geometries, a Georgian mourning brooch or an Edwardian milgrain-bordered pendant arrives with its own metallurgical history, its own period logic, and its own vulnerabilities. A goldsmith who approaches such a piece with modern instincts alone risks causing irreversible damage within minutes.

Period Settings Demand Historical Fluency

Each jewellery era produced its own construction vocabulary. Georgian collet settings were frequently built on silver-topped gold mounts with foil-backed stones to amplify candlelight; the foil is fragile, and cleaning solvents or ultrasonic machines can dissolve both the backing and the adhesive holding the piece together. Victorian coronet settings, with their fine claws and delicate open-work shoulders, were forged to thinner gauges than modern equivalents. Edwardian milgrain borders, so characteristic of that period's refinement, are easily blurred or lost entirely if a polishing wheel is applied without care. Art Deco geometric constructions often combine calibré-cut stones set flush into geometric channels; disturbing one element can shift the entire mosaic. A goldsmith working on such pieces requires not only technical skill but a genuine understanding of why each period built jewellery the way it did.

The Mixed-Metal Challenge

Victorian and Edwardian jewellery frequently combines yellow gold, silver and rose gold within a single construction, often in the same setting. Each alloy carries a different melting point and a different rate of thermal expansion, meaning that applying the heat required to solder one element risks distorting or damaging another. Solder grades must be individually selected and flux carefully chosen to suit each metal in proximity. At Griffin and Co, our goldsmiths assess mixed-metal pieces methodically before any heat is applied, mapping the construction to understand the sequence and calibration required. This is not a task that benefits from speed.

Conservation, Not Over-Restoration

One of the most consequential decisions in antique jewellery repair is knowing what not to do. The dark oxidisation in the recesses of a Victorian engraved locket is not tarnish to be removed; it is the period's intentional contrast, giving the piece its depth and age. The fine surface texture of a Georgian repoussé mount should never be smoothed by a mechanical polishing wheel, which would impose a modern finish, erase hallmark details, and destroy the character that makes the piece what it is. Responsible conservation means restoring structural integrity while preserving every mark of age that is part of the object's identity. This distinction, between conservation and over-restoration, is one that our workshop takes seriously on every antique piece it receives.

Sourcing Period-Appropriate Stones

When an antique setting requires a replacement stone, the challenge extends well beyond matching colour and clarity. A Victorian rose-cut diamond was ground to entirely different proportions than a modern round brilliant; placing a contemporary cut into a period setting produces a visually incongruous result and may not seat correctly within the original collet. Old-cut diamonds, rose-cut stones, and calibré-cut coloured gemstones are not produced at scale by modern cutters, meaning replacement sourcing requires access to specialist dealers and a patient, considered approach. Our GIA-certified specialists understand that cut geometry is as significant as the four Cs when matching stones to antique settings, and we take the time to source correctly rather than compromise on fit.

When an Heirloom Is Better Reimagined

Not every inherited piece can be fully restored to wearable condition in its original form. A Victorian brooch with a broken pin mechanism and an outdated silhouette may be unwearable as it stands, yet contain stones of genuine quality and metal with real sentimental value. In these cases, thoughtful remodelling offers a considered path forward: retaining the original gemstones and recycled metal while refreshing the design into something the next generation will wear with pride. This is not a departure from the piece's legacy; it is a continuation of it. Growing consumer appetite for vintage and estate jewellery reflects precisely this desire to honour original materials rather than replace them. If a piece you have inherited feels beyond repair, we would encourage you to book a private consultation at our Chichester showroom or request a home visit before drawing any conclusions. Remodelling often begins where repair ends.

When Repair Becomes Remodelling: Giving an Old Piece a New Life

Sometimes, the most honest advice a goldsmith can offer is that repair is not the right path forward. There are pieces that have given everything they can structurally, and pieces that have simply outgrown the life their owner now leads. Knowing the difference is where genuine expertise begins.

When Repair Is No Longer Enough

Certain conditions signal that a piece has moved beyond the reach of straightforward restoration. A shank worn so thin it has cracked through the base, a gallery so fatigued that prongs can no longer be retipped without compromising the surrounding metalwork, or a bracelet clasp whose mechanism has failed repeatedly despite previous attention: these are the moments when a skilled goldsmith will gently redirect the conversation. Equally, there are pieces that are structurally sound but emotionally misaligned. An inherited ring that carries deep sentimental value but reflects a style from another era, a bracelet gifted decades ago that now sits unworn in a drawer: these pieces deserve a second life rather than continued existence in the wrong form. Lifestyle changes, shifting aesthetics, and the desire to honour a loved one's legacy in a more wearable way are all entirely legitimate reasons to consider remodelling over repair.

The Four-Step Remodelling Journey

At Griffin and Co, remodelling follows the same meticulous four-step process that underpins every bespoke commission: Consultation, Stones and Metals, CAD Design, and Handcrafting. The consultation is where the emotional context of the piece is understood as carefully as its physical condition. During the Stones and Metals stage, existing gemstones are assessed by our GIA-certified specialists and existing gold or platinum is evaluated for reuse, so that nothing of material or sentimental significance is lost. Design then takes shape through a collaborative process before any metalwork begins, and the final piece is hand-crafted in our on-site workshop with the same discipline applied to any new commission. The client's original materials remain at the heart of every decision throughout.

Visualising the Result Before It Exists

Our 3D CAD design service plays a particularly important role in remodelling commissions, where clients are often asked to imagine something that does not yet exist. A photorealistic render allows you to see precisely how your existing stones will sit within the new setting, how proportions will read at actual scale, and how the finished piece will reflect your intent. No metalwork begins until you have approved the design with complete confidence. This stage removes the uncertainty that can otherwise make remodelling feel like a significant leap of faith.

Material Legacy and Ethical Responsibility

Griffin and Co works exclusively with 100% recycled metals, and this commitment takes on particular meaning in the context of remodelling. When your original 18ct gold or platinum is melted and reformed, it retains its material identity within the new piece, with no newly mined metal required. The environmental cost of extraction is eliminated entirely, and the gold that once belonged to a grandmother or marked a significant chapter of your own life continues its journey in a form you will genuinely wear. For clients who value ethically sourced jewellery, remodelling with recycled metal represents a choice that is both personally meaningful and responsible.

Beginning Your Remodelling Journey

Clients who arrive at Griffin and Co through a repair enquiry and discover that remodelling is the more appropriate path are naturally guided toward our bespoke commission journey, where the full four-step process unfolds at a pace that suits them. For those who prefer to explore design possibilities before committing to a conversation, our online 3D design studio offers an independent starting point, accessible from anywhere across Surrey, Hampshire, Greater London or beyond.

To begin with a private, unhurried consultation, visit our Chichester showroom and bring the piece with you, or request a home visit if you are in Richmond, Guildford or further afield. If you would prefer to explore first, open the online 3D design studio and begin shaping the possibilities on your own terms.

Ethical Repair: Responsible Restoration and Recycled Metals

Ethical responsibility does not begin and end at the point of purchase. Every time metal is added to a piece during a repair — whether resizing a band, re-shanking a worn shank, or rebuilding a damaged claw setting — new material enters that piece. At Griffin and Co, that material is exclusively 100% recycled gold and platinum. No newly mined metal is introduced into any repair we undertake. This commitment mirrors precisely the same ethical obligation that governs the creation of our bespoke pieces from scratch; a piece's lifecycle does not pause its values simply because it has returned to the workshop for restoration.

The sourcing of replacement stones carries equal weight. In the current climate, with Russian diamond sanctions reshaping certification expectations across the industry and the Kimberley Process actively strengthening its integrity framework through digital verification tools and ISO-certified best practices, full documentation of stone origin is no longer a courtesy; it is the baseline expectation. Any replacement stone sourced by Griffin and Co is Kimberley Process compliant and accompanied by complete provenance documentation. Clients receive this information as standard, not upon request.

For clients who need to replace a lost or damaged stone entirely, lab-grown diamonds present a compelling and ethically sound option. Chemically, physically, and optically identical to mined diamonds, lab-grown stones eliminate supply-chain uncertainty at source. Griffin's GIA-certified specialists are able to advise precisely on the four grading criteria that determine whether a replacement is visually indistinguishable from the original: cut, colour, clarity, and carat. Matching a replacement stone to an existing setting requires the same meticulous attention to these characteristics as selecting a diamond for a new commission, and our team approaches that work with exactly the same rigour. Clients across Surrey, Hampshire and Greater London who wish to explore lab-grown options as part of their repair brief are encouraged to book a private consultation to discuss stone selection in detail.

The commercial argument for ethical repair is well established. Consumer interest in ethically sourced jewellery is not confined to new purchases; it reflects a broader values shift in how clients relate to fine jewellery across its entire life. Clients seeking jewellery repairs in London are not simply searching for the most expedient restoration; many are making a considered choice about the materials and practices they are prepared to support.

Transparency throughout every stage of the repair process is the thread that holds all of this together. Griffin and Co's ethical commitments are not a statement of intent issued in a brand document; they are an operational standard applied in the workshop on every piece, every day. Clients are informed of which recycled metals have been used, where replacement stones originate, and precisely how their piece has been handled. That level of disclosure reflects the same transparency clients rightly expect when commissioning new fine jewellery, extended without reservation into the aftercare relationship.

Hallmarking and Valuation After Jewellery Repair

Few clients think about hallmarking law when they bring in a cherished ring for resizing or a worn claw for retipping. Yet under the Hallmarking Act 1973, any addition of precious metal above the relevant de minimis threshold can legally render a previously hallmarked piece unhallmarked. This is not a bureaucratic technicality. It is a consumer protection statute with criminal penalties for non-compliance, and it applies directly to several of the most common repair procedures: resizing where metal is added to the shank, full re-shanking, and claw rebuilding where new gold or platinum is introduced. A piece that has undergone an improper repair, one where added metal was not submitted for re-assay, is treated in law as though it carries no hallmark at all. Any jeweller or goldsmith handling your piece should understand this, manage the submission process on your behalf, and return the work correctly marked.

How Re-Hallmarking Works in Practice

Once a repair involving metal addition is complete, the piece must be submitted to one of the four authorised UK Assay Offices: London (the Goldsmiths' Company Assay Office at Goldsmiths' Hall), Birmingham, Edinburgh, or Sheffield. In practice, the jeweller acts as the registered sponsor and manages the submission; you do not need to courier the piece yourself. Upon successful testing, the finished article will carry three compulsory marks: the sponsor's mark identifying the submitting goldsmith, the Assay Office mark identifying where it was tested, and the fineness mark confirming the metal's purity, for example 750 for 18ct gold or 950 for platinum. An optional date letter may also be struck, which is well worth requesting as it creates a permanent, legible record of when the work was carried out. Both traditional striking and laser hallmarking are available for delicate pieces where a struck mark might risk distortion. Turnaround times vary by office and service level; the London Assay Office publishes its current lead times on its website.

The Insurance Implications of an Unhallmarked Repair

This is where the practical consequences become most acute. A piece whose metal composition has changed during repair, without a corresponding updated hallmark, creates a provable discrepancy between its legal status and its insured description. Specialist jewellery insurers and loss adjusters rely on hallmarking as a primary identifier of metal type and purity at the point of claim. If that record has not been updated, a claim may be queried, reduced, or declined. For fine jewellery carrying insured values in the thousands of pounds, that risk is not theoretical. It is worth confirming with your insurer whether their policy wording requires updated documentation following any material repair, as many specialist policies include a revaluation clause triggered by significant alteration.

Commissioning a Post-Repair Valuation

Beyond re-hallmarking, any piece that has undergone substantial work, whether stone replacement, structural restoration, or significant metal addition, deserves a fresh insurance valuation. The replacement cost of a repaired or restored piece may differ meaningfully from its pre-repair insured value, particularly where stones of high carat weight or quality have been sourced and set. At Griffin and Co, our valuation service is available following any significant repair carried out in our workshop, providing a written appraisal that reflects the piece's current composition, craftsmanship, and market replacement value. This is not a formality; it is the document that protects you if the worst happens. We encourage all clients in Chichester, across Surrey, and throughout Greater London to treat a post-repair valuation as the final, essential step in any meaningful restoration.

Documentation and the Provenance of a Repaired Piece

Britain's hallmarking tradition is centuries old, and a complete hallmarking record remains one of the oldest forms of material provenance a piece can carry. Every repair record, every Assay Office submission, every updated valuation adds a layer to that history. For heirloom pieces destined to pass through generations, this documentation is more than administrative tidiness; it is the evidence trail that allows a future inheritor in Richmond or Guildford to understand exactly what the piece is, what work it has received, and what metal and stones it contains. At Griffin and Co, we retain records of all repairs carried out in our workshop and can assist clients in compiling a coherent provenance file for any piece in their collection. Begin that conversation by booking a private consultation at our Chichester showroom, or request a home visit if you prefer us to come to you.

Choosing the Right Goldsmith for Your Jewellery Repair in London

The criteria explored throughout this guide distil into five principles worth holding firm on: an on-site workshop, a transparent process, specialist fine jewellery experience, a goldsmith who assesses before quoting, and verifiable ethical sourcing credentials. When all five are present, you are in the right hands.

At Griffin and Co, those principles are not aspirational; they are the foundation of every repair we undertake. With our team's combined experience, GIA-certified specialists at the bench, and an on-site workshop where every decision is made in-house, we bring the full weight of that expertise to each piece entrusted to us. Our Chichester workshop and home-visit service place specialist repair within comfortable reach of London clients, while our commitment to 100% recycled metals and Kimberley Process compliance ensures that responsible practice extends into every stage of restoration.

To begin your repair journey, you are welcome to book a consultation at our Chichester showroom, where one of our goldsmiths will assess your piece in person before any work is proposed, or request a home visit if you are in Richmond, Guildford or elsewhere across the South East. Alternatively, you may submit a repair enquiry online with clear photographs for an initial assessment from our workshop.

Every piece brought to us carries something beyond its material value. As a craftsperson, I believe that understanding that story is not a courtesy; it is a responsibility. Each decision made at the bench must honour it.