Ruby

Raw Ruby Jewelry, Handmade in Japan

Explore TROZO's raw ruby necklaces, rings, ear cuffs and earrings — each built around a real, uncut ruby rather than a cut and polished stone. Every piece is handmade in Japan, and as one-of-a-kind raw stone it is truly unique.

Ruby is the variety of corundum colored deep red by chromium — one of the world’s four precious gemstones. Its formula is Al₂O₃, trigonal, Mohs 9 — second in hardness only to diamond. Called *ratnaraja*, “king of gems”, in ancient India, it has a history of over 2,500 years. The finest red is called “pigeon’s blood”, and it is loved as July’s birthstone and the gift for a 40th wedding anniversary.

TROZO works every ruby unpolished, setting it so its natural colour and form lead the design — handmade in Japan, and no two raw stones alike.