A tanzanite bypass ring wraps the band around the stone so the two ends pass each other instead of meeting. Every ring here holds natural, treated tanzanite in round, oval, cushion, pear, princess, emerald, marquise or heart shapes. Choose white, yellow or rose gold, platinum, or Silvadium, a tarnish-resistant sterling silver, for a tanzanite bypass engagement ring or an everyday ring.



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
In a bypass design the band splits around the center and its two ends slide past each other at an angle, which gives the ring a sense of movement. The tanzanite sits between the ends, so the metal curves frame it from both sides. Most rings here are bypass solitaires, with plain, polished or wide flat bands. Others add leaf details, a pave leaf band, a split shank with channel set accents, or a bezel around the center with side stones. All accents are lab-grown diamonds.
Tanzanite is known for its blue-violet color, which shifts between blue and purple as you turn the stone. It sits around 6 to 6.5 on the Mohs scale, softer than sapphire or diamond, so it suits a ring worn with some care. Take it off for sports, gardening and heavy work, and clean it with warm soapy water rather than an ultrasonic cleaner. A bezel setting gives the stone's edge the most protection.
Every design offers 1 to 9 carats total weight, chosen on the product page. Gold comes in 10K, 14K or 18K, and every design is also made in platinum and silver. White metals keep the blue crisp, while yellow and rose gold bring out the violet. Prices start at about $300, and most rings are between about $800 and $1,000 at the smallest option.
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.