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18ct Gold Lab-Grown Diamond Duet Ring 1.00ct
Regular price
£1,720.00
Made to Order
This piece is handcrafted specifically for you by our master jewellers.
Please allow 2 - 4 weeks for crafting and shipping.
Metal
18ct Yellow Gold
Your size is not available? Please select Other to request a custom size. Not sure of your size? Please use the 'Ask a question' to contact us.
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Introducing the Duet — an 18ct gold lab-grown diamond ring for the modern love story.
Two stones, one vision. Hand-finished in our Chichester workshop by Master Goldsmiths, this 18ct gold diamond ring pairs a 0.5ct pear-cut lab-grown diamond with a 0.5ct oval-cut lab-grown diamond for a total of 1.00ct of lab-grown diamond brilliance. Each stone is cut to FVS clarity, delivering exceptional sparkle and light return. Available in 18ct yellow gold, white gold, and platinum, the Duet adapts to your signature metal while maintaining its balanced, contemporary aesthetic. Every facet is checked and every edge hand-polished for a piece as thoughtfully made as it is visually striking.
Perfect for an engagement ring, anniversary milestone or everyday statement, the Duet sits comfortably on the finger and pairs beautifully with a wedding band. Because both diamonds are lab-grown, they are chemically identical to mined stones, more sustainable and ethically sourced — luxury you can feel confident about. Hallmarked in your chosen metal, the ring arrives ready to celebrate.
Key Features
- Dual Stone Design: Pear and oval cuts in complementary shapes, 1.00ct total.
- Lab-Grown Diamonds: FVS clarity, ethically sourced and sustainable.
- Metal Choice: Select from 18ct yellow gold, 18ct white gold, or platinum.
- Hand-Finished: Hallmarked and polished in Chichester by Master Goldsmiths.
| Ring Design: | Toi et Moi (2 Stone) and Cocktail |
|---|---|
| Setting Type: | Prong Set |
| Metal: | 18ct Yellow Gold, 18ct White Gold, and Platinum |
| Gemstone Type: | Diamond |
| Stone Cut/Shape: | Pear Cut and Oval Cut |
| Stone Colour: | F |
| Clarity: | VS |
| Carat/Size: (total) | 1.00ct |
| Lab Grown: | Yes |
| Weight: | 4 g |
Ensure a perfect fit for your ring by using one of the methods below:
- Measure an Existing Ring: Measure the inside diameter (mm) of a ring that fits the same finger perfectly.
- Measure Your Finger: Wrap string or paper around the base of your finger. Mark the overlap and measure the length (circumference) against a ruler.
Expert Tips: Measure at the end of the day when fingers are warmest. If your knuckle is significantly larger than the base of your finger, size up.
Full A-Z Ring Size Conversion Chart
| UK Size | US Size | EU Size | Inside Diameter (mm) |
|---|---|---|---|
| A | 0.5 | 37.8 | 12.04 |
| B | 1 | 39.1 | 12.45 |
| C | 1.5 | 40.4 | 12.85 |
| D | 2 | 41.7 | 13.26 |
| E | 2.5 | 42.9 | 13.67 |
| F | 3 | 44.2 | 14.07 |
| G | 3.5 | 45.5 | 14.48 |
| H | 4 | 46.8 | 14.88 |
| I | 4.5 | 48.0 | 15.29 |
| J | 5 | 49.3 | 15.70 |
| K | 5.5 | 50.6 | 16.10 |
| L | 6 | 51.9 | 16.51 |
| M | 6.5 | 53.1 | 16.92 |
| N | 7 | 54.4 | 17.32 |
| O | 7.5 | 55.7 | 17.73 |
| P | 8 | 57.0 | 18.14 |
| Q | 8.5 | 58.3 | 18.54 |
| R | 9 | 59.5 | 18.95 |
| S | 9.5 | 60.8 | 19.35 |
| T | 10 | 62.1 | 19.76 |
| U | 10.5 | 63.4 | 20.17 |
| V | 11 | 64.6 | 20.57 |
| W | 11.5 | 65.9 | 20.98 |
| X | 12 | 67.2 | 21.39 |
| Y | 12.5 | 68.5 | 21.79 |
| Z | 13 | 69.7 | 22.20 |
Need Bespoke Assistance?
Our expert jewellers can help you find a size not listed or help you measure discreetly for a gift. Contact Griffin and Co today.
Looking for more detail? Read our Jewellery Sizing Blog for a deep dive into measuring tips, international conversions, and secret gifting advice.
Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To start a return, you can contact us at contact@griffinfinejewellery.com. Please note that returns will need to be sent to the following address: 64 South Street, Chichester, PO19 1EE
Read our Full Return and Refund Policy Here
Click and Collect
Collect your online orders in our showroom in Chichester, 64 South Street, PO19 1EE.
All orders can be collected in-store.
You will be notified when your order is ready to collect via e-mail, this process usually takes 5+ days, however if any delays become present, you will be notified as soon as possible.
Please ensure you bring your order confirmation with you when you come to collect your order.
Shipping Rates
All Orders over £100 are eligible for Free Royal Mail Special Delivery (UK only)
UK Royal Mail Special Delivery
Handling Time: 5+ Business Days
Delivery Time: Next Business Day
Cost: £12.99
For more information please visit RoyalMail.com/UK-Special-Delivery
International Tracked & Signed (Including EU)
Handling Time: 5+ Business Days
Delivery Time: 3 - 4 Business Days
Cost: £15.99
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Ethically Sourced
Conflict-free diamonds & gemstones and recycled precious metals.
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Expert Services.
Our relationship with you extends far beyond a purchase. We are here to care for your most treasured possessions for a lifetime.
It's time to create the perfect
Easily design your perfect engagement ring, wedding band or any bespoke jewellery.
We offer expert guidance through in-person consultations at our Showroom or via our Home Visit service. Create a ring as unique as your love story.