Skip to content

New stock

Sort by

[KEN] Goshenite 1.03ct loose Sale price¥12,800

Rose quartz 33.630ct loose Sale price¥15,800

Diamond 0.240ct rough stone Sale price¥5,980

Diamond 0.430ct rough stone Sale price¥12,800

Diamond 0.330ct rough stone Sale price¥6,980

Diamond 0.210ct rough stone Sale price¥9,800

Fire opal 1.290ct loose Sale price¥8,800

Smithsonite 5.590ct loose Sale price¥22,800

Smithsonite 1.130ct loose Sale price¥5,980

Smithsonite 2.650ct loose Sale price¥12,800

KARATZ Custom Made

Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.