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Seven and a half carats of round brilliant fire — the 7.65ct DEW White Moissanite Round Solitaire Ring in 18K Gold Vermeil on 925 Sterling Silver, GRA certified. At 7.65ct DEW, a round moissanite produces a diameter of approximately 12.8mm — a stone that creates intense, animated sparkle at a scale that commands immediate attention on the hand.
This is a technically verifiable claim. Moissanite has a refractive index of 2.65–2.69, compared to diamond's 2.42. A higher refractive index means more light is bent inside the stone before exiting — producing more brilliance (white light return). Moissanite also has a dispersion (fire) value of 0.104, versus diamond's 0.044 — meaning moissanite produces 2.4× more rainbow fire than diamond of equivalent cut quality. At 7.65ct DEW in the round brilliant, both of these properties are operating at maximum scale. The round brilliant cut is mathematically optimised for light performance — combined with moissanite's superior optical properties, this ring produces more sparkle than any natural round diamond of comparable size.
At 7.65ct DEW and 12.8mm diameter, this stone is best complemented by a simple, clean setting that allows maximum light to enter and exit the stone from all angles. A classic 4 or 6-prong solitaire basket setting in yellow gold (complementing the 18K gold vermeil) is the most appropriate choice — it holds the stone securely while minimising metal coverage of the stone's perimeter. Halo settings at this size are generally unnecessary (and arguably counterproductive — the stone is large enough that a halo adds visual clutter rather than enhancement). A split-shank setting adds interest to the band without competing with the stone.
✓ Free worldwide insured shipping ✓ 30-day easy returns ✓ Lifetime exchange ✓ GRA certificate included ✓ Factory-direct pricing
A quick summary of how shipping works at GemHub & Co. Most pieces are made to order, so the realistic timeline runs from the moment you order to the moment your piece arrives.
Please note: These are good-faith estimates, not guarantees, and do not include time lost to customs processing in the destination country.
This is a summary. For the complete shipping policy, including international order requirements and how we handle delays, please read the full Shipping Policy.
This store is owned and operated by Hamlet Global Trading FZCO (trading as GemHub & Co.), a free-zone company registered in the United Arab Emirates, with its registered office at IFZA Business Park, Building A1, Dubai, United Arab Emirates.
A quick summary of how returns work at GemHub & Co. Most pieces are made to order; ready-stock items come with a 30-day return guarantee and a free first return.
Almost every order falls into one of two categories — we tell you which on each product page.
Most GemHub & Co. pieces are crafted specifically for you. These, along with customised and engraved items, are final sale and not eligible for return or exchange — except where the item arrives defective or we have made an error, in which case we replace or fully refund it at no cost to you, including return shipping.
Cancellations are accepted within 24 hours of ordering only; production begins within 5 hours of payment.
Ready-stock (non-custom) items may be returned within 30 days of shipment, or exchanged within 45 days.
Not sure whether your piece is made to order or ready stock? Email support@gemhubco.com before you place the order and we’ll confirm.
This is a summary. For the complete return and refund policy, including condition requirements, cancellation terms, and your consumer rights, please read the full Return & Refund Policy.
This store is owned and operated by Hamlet Global Trading FZCO (trading as GemHub & Co.), a free-zone company registered in the United Arab Emirates, with its registered office at IFZA Business Park, Building A1, Dubai, United Arab Emirates.
Every piece comes with a genuine EGL / IGI / GIA certificate of authenticity, verifying the quality of your stone. Verify your certificate here →
Note: Our products are handcrafted and personalised for your delight, hence a weight variance is expected.
We make every ring to order — we are the factory. Custom sizes and personalisations add just a few days.
Customise this piecePair with matching pieces from the same collection
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