Skip to content

Bicolor/Party color system

Some gemstones exhibit multiple colors within a single stone; two colors are called bicolor, three colors are tricolor, and multiple colors are called particolor. Some are clearly separated, while others have a gradation, so I think these are gemstones that give you a sense of their individuality.

Karatz GemMagazine
" Bicolor gemstone "

Sort by

Benitoite 0.066ct loose Sale price¥14,800

coming soon ジンバブエ産バイカラーユークレース 0.503ctルース 日独鑑【宝石図鑑掲載】
Sold out ブラジル産バイカラートルマリン 1.209ctルース
Sold out タンザニア産バイカラーサファイア 0.713ctルース(カラーシフト)
Sold out [On sale at 10pm on 10/20] Brazilian bicolor tourmaline 2.020ct loose stone
Sold out バイカラートルマリン 1.616ctルース
Sold out 【猫カット】トパーズ 2.741ctルース 《コラボ》
Sold out 奈良県天川村産レインボーガーネット(アンドラダイトガーネット) 1.655ctルース
Sold out バイカラーサファイア 0.278ctルース
Sold out ブラジル産ポンポンクォーツ(ラジエーテッド クリスタルインクォーツ) 6.509ct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.