

Lab-Grown Diamond Tennis Necklace - Round Brilliant F VS2 3.10ct, 5.05ct & 6.31ct
A diamond tennis necklace is one of those rare pieces that needs no introduction — and this one earns every glance.
This bespoke lab-grown diamond tennis necklace is set with a seamless row of round brilliant-cut diamonds, graduating gently at the centre for a balanced, beautifully proportioned silhouette. At 17.5 inches, it sits perfectly along the neckline — elegant enough to wear alone, substantial enough to anchor a stack. From every angle, it delivers exceptional fire, brilliance and that unmistakable continuous sparkle that only a tennis necklace can.
Every diamond is individually hand-selected to F colour and VS2 clarity — the kind of specification that ensures each stone is bright white and eye-clean throughout the entire length of the piece. Yes, these are real diamonds. Lab-grown diamonds are physically, chemically and optically identical to mined diamonds. They are graded using exactly the same international standards, carry the same fire and brilliance, and are simply grown in a controlled environment rather than extracted from the earth.
Because this necklace is made to order, you choose exactly what you want. Select your preferred total carat weight — from the beautifully delicate 3.10ct option through to the boldly luminous 6.31ct — and then choose your metal: 9ct yellow gold, 9ct white gold, 18ct yellow gold or 18ct white gold. Each combination results in a completely individual piece, handcrafted with care in our Harrogate studio.
Please allow 3–6 weeks for completion. This is not a piece that is rushed, and the result reflects that entirely.
Diamond Weight Guide
| Total Carat Weight | Character | Best For |
|---|---|---|
| 3.10ct F VS2 | Refined and luminous | Everyday elegance, layering |
| 5.05ct F VS2 | Balanced and striking | Occasion wear, statement dressing |
| 6.31ct F VS2 | Bold and show-stopping | Maximum impact, red carpet |
Product Details
| Stone type | Lab-grown diamonds |
| Cut | Round brilliant |
| Colour | F |
| Clarity | VS2 |
| Total carat weight | 3.10ct / 5.05ct / 6.31ct |
| Setting style | Claw-set, graduating centre |
| Length | 17.5 inches |
| Metal options | 9ct yellow gold, 9ct white gold, 18ct yellow gold, 18ct white gold |
| Made to order | Yes — please allow 3–6 weeks |
| Hallmarked | Yes |
FAQ:
What does F VS2 mean? F refers to the colour grade — F is near-colourless, sitting at the very top of the colour scale and appearing bright white to the eye. VS2 (Very Slightly Included 2) refers to clarity, meaning the diamonds contain only minute inclusions that are invisible to the naked eye. Together, F VS2 represents an exceptionally high-quality specification, ensuring every diamond in this necklace is brilliant, clean and consistent.
Can I choose my carat weight and metal? Yes — this necklace is made entirely to order. You select the total carat weight (3.10ct, 5.05ct or 6.31ct) and your preferred metal (9ct yellow gold, 9ct white gold, 18ct yellow gold or 18ct white gold). We will guide you through the options in our Harrogate showroom or over email, whichever you prefer.
How long will it take? Because each necklace is individually handcrafted to your specification, please allow 3–6 weeks for completion. We will keep you updated throughout the process and ensure the finished piece arrives beautifully presented.
Can I try it on before ordering? We warmly invite you to visit our Harrogate studio at 14 Cambridge Street to discuss your options in person. Seeing the sparkle of lab-grown diamonds under showroom lighting is quite something — and our team is always happy to help you find the perfect carat weight and metal combination for you.
Does the necklace come gift-wrapped? Yes. Every piece from Fogal & Barnes is presented in our signature packaging, making it a perfect gift as well as a treat for yourself.
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