Open Square Tanzanite Necklace with Diamonds

An open square outlined in natural diamonds, 3/8 carat total, hangs on point with a square natural tanzanite at its top corner, on a 16 to 18 inch adjustable chain.

The center is natural tanzanite and the accents are natural diamonds, about 3/8 carat total weight.

Natural tanzanite is routinely heated to develop its violet-blue color. The treatment is permanent and standard for tanzanite, and we disclose it on every piece.

Made to order in solid 14K Yellow Gold, 14K White Gold, 14K Rose Gold, Platinum. Tanzanite rates 6 to 7 on the Mohs scale, so store it apart from harder stones, clean it with warm soapy water and a soft brush, and keep it away from ultrasonic and steam cleaners and sudden temperature changes.

The necklace comes on its chain. Tanzanite is our December birthstone and a gem for a 24th anniversary. Returns are accepted within 30 days, unworn and in original condition.

Every order ships free and fully insured by UPS Ground; orders of $500 or more ship by complimentary UPS Express, signature required on delivery (a $50 upgrade below that). Ready-to-ship pieces leave us in 2–3 business days; made-to-order pieces in 5–10. Returns are accepted within 30 days, and every piece carries our free lifetime warranty against manufacturing defects.