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1 Carat Princess Cut Platinum Laboratory-Grown Diamond Three Stone Engagement Ring
Price$2,609$5,218Ends Soon
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This 1 carat platinum three stone ring is made in platinum with a 1 carat lab-grown diamond center already set between two lab-grown diamond side stones. Choose the center shape from round, oval, cushion, princess, emerald, radiant, Asscher, pear, marquise or heart. It is a 1 carat 3 stone lab-grown diamond ring in platinum, with a band you can keep slim or a little wider.
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 naturally white metal, so it needs no plating to stay bright, and it is dense, which gives the ring a solid feel on the hand. Over time it develops a soft satin look called patina; a polish brings back the shine. It is also a good choice for anyone sensitive to some alloys in white gold.
The center holds the 1 carat lab-grown diamond, and a smaller stone sits on each side. The side stones widen the look across the finger and add their own weight on top of the center's 1 carat. Many people see the three stones as past, present and future, though the main reason to choose the style is how balanced it looks.
Round gives the most sparkle, while oval, pear and marquise make the center look longer. Princess, radiant, emerald and Asscher bring a crisp, square-edged look, and cushion and heart are softer. The band is offered in widths from about 1.8 to 2.2 mm.
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.
This platinum ring starts from about $2,600, and that price includes the 1 carat lab-grown diamond center and both side stones. Platinum is priced higher than gold because it is denser and rarer, so the same ring in gold costs less. The final price depends on the shape and options you choose on the product page.
