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1 Carat Marquise Platinum Laboratory-Grown Diamond Halo Ring with Three-Row Pave Band
Price$4,789$9,578Ends Soon
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Each ring in this collection sets a 1 carat marquise lab-grown diamond center in platinum, ready to wear with nothing left to choose but the style. You can pick a slim solitaire, a pavé band, a halo or hidden halo, a three stone ring, or a design with pear or marquise side accents, all built around the same long, pointed center.
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
A marquise is a long oval with a point at each end. Because so much of its weight sits in its length, a 1 carat marquise lab-grown diamond tends to look larger from above than a round stone of the same weight. Set north to south, it also makes the finger look longer and slimmer. The two points are the most delicate parts of the stone, so they are usually held by prongs or V-shaped tips.
Platinum is dense and tough, which helps it grip the points of a marquise firmly over years of wear. It is naturally white, so it needs no plating and lets a colorless lab-grown diamond look bright. With time it develops a soft satin look that a jeweler can polish back to a shine. It also feels heavier on the hand than gold.
The 1 carat figure is the center's weight; any accents add to the ring's total.
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.
Prices start from about $1,350, and most rings here cost between about $1,700 and $2,300. Every price covers the finished platinum ring with its 1 carat marquise lab-grown diamond center already set, so there is no separate stone to buy. Styles with more small lab-grown diamonds, such as halos, three stone rings and side-accent designs, generally add to the price.