A lab-grown ruby and lab-grown diamond cluster ring circles a red center with small stones, so the top reads as one larger shape. Choose a floral double halo, a star-shaped halo with a pavé band or a graduated cluster solitaire, with an oval, round, cushion, emerald cut, princess, pear, marquise or heart center in white, yellow or rose gold in 10K, 14K or 18K, platinum, or Silvadium, a tarnish-resistant sterling silver.



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 cluster ring gathers small stones tightly around a center. The looks here:
The white lab-grown diamonds make the red look deeper, and the cluster makes the center look larger than it would on its own. That suits a lab-grown ruby cluster engagement ring or a bold right-hand ring.
A lab-grown ruby is the same red corundum crystal as a natural ruby, grown under controlled conditions. It rates 9 on the Mohs scale, just below diamond, so it holds up well in a ring worn every day. The color is even and the stone is usually very clean, at a far lower cost than a natural ruby of similar size and color.
Each design offers 1 to 9 carats total weight. Yellow and rose gold give a warm, classic look with red; white gold, platinum and silver make the contrast sharper. Prices start under $450, and most rings are just under $1,000 at their smallest size.
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.