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5 Carat Oval Platinum Laboratory-Grown Diamond Three Stone Engagement Ring
Price$6,679$13,358Ends Soon
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Each of these 5 carat three stone rings arrives with a 5 carat lab-grown diamond center set between two lab-grown diamond side stones. The center comes in round, oval, cushion, princess, emerald, radiant, Asscher, marquise, pear or heart, and the ring is made in platinum or in white, yellow or rose gold at 10K, 14K or 18K.
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 three stone ring places one large center between two smaller stones. Here the center weighs 5 carats by itself, and the side stones add to the total, so the ring holds more than 5 carats of lab-grown diamond. The side stones spread light and width across the finger, which helps a large center feel settled rather than top-heavy. Many people read the three stones as past, present and future, which is why the style is a favorite for engagements and anniversaries.
Shape changes the look more than anything else at this size. Round centers give the most sparkle. Oval, pear and marquise centers stretch along the finger and can look larger for their weight. Emerald and Asscher cuts show long, clear step facets with a calm, glassy look. Cushion and radiant cuts mix sparkle with softer corners, princess gives a crisp square outline, and heart is the most romantic choice.
Platinum is white through and through and very durable. White, yellow and rose gold come in 10K, 14K or 18K; higher karats hold more gold and show a deeper color, while 10K is the hardest wearing. Band widths run from 1.8 to 2.2 mm. The 5 carat 3 stone lab-grown diamond ring starts at about $4,000 in the lowest-priced metal, with the center and side stones included.
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.
They start at about $4,000, with the 5 carat lab-grown diamond center and the lab-grown diamond side stones included in that price. That figure is for the lowest-priced metal option; higher karat gold and platinum cost more. Because lab-grown diamonds cost far less than natural diamonds of the same size, a 5 carat three stone ring costs much less here than a mined equivalent.
