Round Cut Engagement Rings | Lab Grown Diamond | IGI

Round cut lab grown diamond engagement rings have held the top position in global engagement ring sales for over a century, and nothing has ended that run. The round brilliant cut, with its 57 precisely engineered facets, is designed with one objective: to return more light to the eye than any other shape, from any angle, in any lighting condition.

Every round cut lab grown diamond engagement ring in the Ronora collection is made to order in our Surat studio. The center stones are Real CVD Lab-Grown Diamonds: VVS clarity, D-E-F Colorless range, grown using Chemical Vapor Deposition technology and physically identical to mined diamonds in every measurable optical and structural property. IGI certification is included for eligible selections.

The round brilliant was mathematically optimized by Marcel Tolkowsky in 1919, who calculated the exact proportions that maximize brightness and fire simultaneously. Those proportions have been the basis of every round cut diamond since. A round cut lab grown diamond engagement ring is therefore not just a popular choice: it is the result of a century of gemological science applied to the question of how to make a diamond as visually overwhelming as possible.

Available in solitaire, halo, three stone, pave, vintage, and every other major setting style. Every round cut lab grown diamond engagement ring ships with IGI certification for eligible selections. Made to order in 14K and 18K Solid Gold in White, Yellow, and Rose, plus 10K Gold, 925 Sterling Silver, and Platinum.

Ronora - Made for the Moments.