Opal

Raw Opal Jewelry, Handmade in Japan

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

Opal (SiO₂·nH₂O, hydrated silica) is a rare gem whose orderly, stacked microspheres of silica diffract light into a shifting rainbow known as play-of-color. It is amorphous — a “mineraloid” with no crystal lattice — with a Mohs hardness of 5.5–6.5. As October’s birthstone, its traditional associations include hope, innocence and creativity. Opal divides into precious opal, which shows play-of-color (black, white, fire, water, boulder), and common opal, which does not — each with a character entirely its own.

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