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3 Carat Radiant Cut Platinum Diamond Pave Band Solitaire Ring with Round and Prong Setting
Price$4,849$9,698Ends Soon
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Each ring in this collection is finished, with a 3 carat radiant cut lab-grown diamond already mounted and its cost built into the price. Choose a solitaire, a cathedral setting, a halo or hidden halo, a three stone ring or side accents in pear or marquise for a 3 carat radiant cut engagement ring that fits your style. Choose platinum, or gold in white, yellow or rose 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 →Buying guide
A radiant cut combines the trimmed-corner outline of an emerald cut with brilliant faceting. It sparkles more than a step cut, and its many facets help mask small inclusions. The cut corners also protect the stone from chips. A 3 carat radiant lab-grown diamond ring has a crisp, rectangular or squarish shape with lively, scattered light.
The 3 carat weight is the center alone. Accents are lab-grown diamonds that add to the ring's total.
White gold and platinum give a bright, cool frame, and yellow or rose gold add warmth and contrast. For gold, pick 10K, 14K or 18K: the lower karats wear harder and cost less, while 18K carries a richer color. Platinum is naturally white, dense and heavier than gold.
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 finished 3 carat radiant cut lab-grown diamond ring begins near $1,950, with most designs priced around $2,250 to $2,400. The price includes the center, already set, in the lowest-priced metal option. Platinum, 18K gold and halo or pavé styles cost more. Lab-grown diamonds cost far less than natural diamonds of the same size, which keeps a 3 carat center within reach.