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bicolor tourmaline

Tourmaline, which is the birthstone for October, refers to those that exhibit two colors in one crystal. There are various combinations such as pink and green, pink and blue, and green and colorless. Each gemstone has its own unique color and balance, so you can enjoy its individuality. Those with pink to red hues surrounded by green hues are called "watermelon tourmalines" because they look similar to watermelons.

Karatz GemMagazine
" Bicolor tourmaline "

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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.