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colored stone loose

A list of colored stones and loose gemstones.

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coming soon 【12/21 22時販売】南アフリカ産ロードクロサイト 0.457ctルース
coming soon カシャライアメジスト 0.756ctルース
coming soon 【12/21 22時販売】タンザニア産カラーチェンジガーネット (アレキタイプ) 0.767ctルース
coming soon 【12553165掲載】タンザニア産グレープガーネット 0.573ctルース
coming soon 【12553137掲載】エメラルド 0.354ct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.