These platinum engagement rings are ready to order with a 2 carat princess cut lab-grown diamond center already set, so the price covers the whole ring. Pick a solitaire on a plain or pavé band, a hidden halo, a halo on a three-row band, a three stone ring, or a center flanked by marquise or pear accents of lab-grown diamond.



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 many facets under the table, which gives it strong sparkle close to a round. It keeps more of the rough crystal than a round, so a 2 carat princess often has a slightly larger face for its weight. Its pointed corners are the most exposed part of the stone, so they need firm protection.
Prongs placed over the corners guard a princess cut best. Platinum is a good metal for those prongs: it is dense and tough, and it bends rather than chips, which keeps the prongs secure on a stone with four points. A halo adds a further ring of metal and lab-grown diamonds around the edge.
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 from about $1,750, and most are between about $2,150 and $2,700. Each price covers the complete platinum ring with its 2 carat princess cut lab-grown diamond center set and ready to wear. Solitaires on a plain band cost the least; halo, pavé, side-accent and three stone designs cost more because they use more lab-grown diamonds and platinum.