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2.5 Carat Radiant Cut Platinum Laboratory-Grown Diamond Halo Ring with Three-Row Pave Band
Price$5,499$10,998Ends Soon
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These 2.5 carat radiant cut engagement rings come with a lab-grown diamond center already set and priced in. Choose a solitaire on a plain or pave band, a halo, a hidden halo, a three stone ring or a band with marquise or pear accents, in white, yellow or rose gold or in 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 →Buying guide
A radiant cut combines a rectangular or square outline with brilliant facets, so it sparkles like a round stone while keeping straight sides. Its trimmed corners make it sturdier than a sharp-cornered shape. A 2.5 carat radiant lab-grown diamond ring often looks a little larger across than a round of the same weight because the stone is longer.
Some rings are solitaires with a plain or rounded band, and some add pave lab-grown diamonds along the band. The cathedral ring raises the center over a graduated pave band. A halo surrounds the radiant with small stones and pairs it with a three-row pave band; the hidden halo places them under the center instead. The three stone ring and the bands with marquise or pear side accents spread the sparkle across the finger. Accents add to the ring's total beyond the 2.5 carat center.
Every ring comes in 10K, 14K or 18K white, yellow or rose gold, or in platinum. White metals make the stone look its brightest, and yellow or rose gold adds warmth around it.
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.
Here, a 2.5 carat radiant cut lab-grown diamond ring starts at about $1,600, and most are between about $1,900 and $2,000 in the lowest-priced metal. That covers the finished ring with its center set. Higher gold karats and platinum cost more, and styles with more accents sit at the top of the range. Lab-grown diamonds cost far less than natural diamonds of the same size.