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6 Carat Cushion Cut Platinum Laboratory-Grown Diamond Cathedral Ring with Graduated Pave Band
Price$5,809$11,618Ends Soon
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Each platinum ring here comes with a 6 carat lab-grown diamond center already set, and the price includes it. Pick from round, oval, cushion, princess, emerald, radiant, Asscher, pear, marquise and heart shapes, then a plain or pave solitaire, a hidden halo, a halo, a cathedral, a three stone ring or a design with side accents.
From timeless solitaires to dazzling halos and vintage-inspired designs, explore the most-loved engagement ring settings — and find the style that tells your story.
A single diamond, beautifully unadorned — the timeless, most-loved setting that puts your stone center stage.
Shop Solitaire Rings →A circle of pavé diamonds frames the center stone, adding sparkle and making it look noticeably larger.
Shop Halo Rings →Three diamonds symbolising your past, present and future — a meaningful design with extra brilliance.
Shop Three-Stone Rings →Tiny diamonds set along the band catch the light from every angle for all-over shimmer.
Shop Pavé Rings →Intricate milgrain and antique-inspired detailing, for a ring with timeless, heirloom character.
Shop Vintage Rings →Two interwoven bands of metal and diamonds create a modern, dynamic silhouette.
Shop Twisted Shank Rings →Keep exploring
Buying guide
Platinum is a dense, naturally white metal, so it never needs replating. Its weight and strength make it a secure home for a large stone, and prongs hold firm with wear. The surface softens to a satin patina over time, which some people like and a polish can remove. Platinum is also gentle on sensitive skin, which matters for a ring worn every day.
Solitaires on a thin or rounded plain band are the simplest choice. Pave solitaires add small lab-grown diamonds along the band, and the hidden halo adds a row of them under the center. The cathedral lifts the center on arches over a graduated pave band. A halo design with a three-row pave band and filigree details has a vintage look. The three stone ring and the side accent designs, with marquise and round or pear and round stones, give the widest look. Those accents are extra stones beyond the 6 carat center.
All ten shapes are offered on every design. Round and radiant give the most sparkle, oval, pear and marquise look longer on the finger, and emerald and Asscher cuts show bold step facets that suit the clean white of platinum.
Each ring is made for you in 10–15 days. Shipping is free on orders over $500, returns are accepted within 30 days, and one resize is free within 60 days of delivery.
Our 6 carat platinum rings start from about $4,950, and most cost between about $5,500 and $6,200. That price includes the 6 carat lab-grown diamond center as well as the platinum setting. Plain solitaires sit at the lower end, while halo, three stone and side accent designs use more metal and small stones and cost more.