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Sold out [10/2 22:00 Sale] Nigerian Cobalt Garnite 0.311ct Loose Stone JTL Catalog
Sold out ナイジェリア産コバルトガーナイト 0.943ctルース
Sold out 非加熱ブラジル産パライバトルマリン 0.122ctルース《エイトリータ》(CuO:1.9%、MnO:1.1%)
Sold out [On sale from 10/20 at 10pm] {Limited to 2 stones} 1 loose needle-in topaz from Madagascar {Multiple purchase discounts available}
Sold out ブルーサファイア 0.408ctルース
Sold out ノンオイルエメラルド 1.76ctルース GIA
Sold out バイカラートルマリン 1.616ctルース
Sold out ガーデンクォーツ 61.115ctルース
Sold out [On sale at 10pm on 10/20] Brazilian bicolor tourmaline 2.020ct loose stone
Sold out ブラジル産パライバトルマリン 0.052ctルース(CuO:1.6%、MnO:2.1%)
Sold out ビルマ産レッドスピネル 0.165ctルース
Sold out モザンビーク産パライバトルマリン 0.838ctルース
Sold out モザンビーク産パライバトルマリン 1.043ctルース

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.