An amethyst engagement ring in a princess cut sets a square purple stone at the center, with crisp corners and plenty of sparkle. Every ring holds a natural, treated amethyst. Choose a solitaire, halo, pave, three stone, split shank or vintage design, in white, yellow or rose gold, 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
Amethyst is the purple variety of quartz and the February birthstone. It rates 7 on the Mohs hardness scale, hard enough for everyday rings with sensible care: take it off for heavy work and keep it away from long, strong sunlight and high heat, which can fade the color over time. A princess cut amethyst ring shows the stone's color evenly across its square face.
Princess corners are the most exposed part of the stone, so many designs hold them with claw prongs.
Every design offers 1 to 9 carats total weight. Gold comes in 10K, 14K or 18K; platinum is the heaviest and most durable choice, and silver is the lightest on the budget. Rings start under $300, and most are between about $750 and $1,050.
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.