Skip to content

0.1ct - 2.0ct

Sort by

White topaz 1.90ct loose Sale price¥6,980

Aquamarine 1.850ct loose Sale price¥5,980

Bicolor spinel 1.23ct loose Sale price¥79,800

Red beryl 0.203ct loose Sale price¥29,800

Cobalt Garnite 0.122ct loose Sale price¥18,800

Iolite sunstone 0.81ct loose Sale price¥15,800

Iolite 0.46ct loose Sale price¥4,980

Green Beryl 1.45ct 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.