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3 Carat Princess Cut Platinum Laboratory-Grown Diamond Solitaire Engagement Ring with Pave
Price$2,709$5,418Ends Soon
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Each 3 carat princess cut solitaire ring here comes with a 3 carat lab-grown diamond center already set, and the price covers the finished ring. Pick a plain band, a rounded plain band or a pavé band, a cathedral setting over graduated pavé, or a hidden halo. Choose white, yellow or rose gold in 10K, 14K or 18K, or platinum.
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 princess cut is a square brilliant with sharp corners and bright, crisscross faceting. As a solitaire it gives a clean, modern ring with a bold geometric center. The pointed corners are the most exposed part of the stone, so prongs that cover each corner matter more here than on rounded shapes. A 3 carat princess cut solitaire engagement ring keeps all the attention on that square outline.
A plain band is the simplest choice and makes the center look larger by contrast. A rounded plain band has a softer profile that feels comfortable every day. A pavé band runs lab-grown diamond accents along the shoulders. The cathedral setting lifts the center on arches from a graduated pavé band, and the hidden halo adds a row of small lab-grown diamonds under the center that shows from the side. The 3 carat figure is the center alone; accents add to the total.
White gold and platinum keep the look sharp and cool, which suits the straight lines of a princess cut. Yellow and rose gold give it a warmer frame. 10K gold is the hardest and costs least, 18K the richest in color. Platinum is naturally white and heavier on the hand.
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.
