tourmaline

Tourmaline is one of the birthstones for October. It is a gemstone with so many color variations that it is said that there is no such thing as a non-existent color, and some gemstones show multiple colors within a single stone. It has the property of generating static electricity when heated, and its Japanese name is "tournament stone." Some are called by specific names depending on their color.

Karatz GemMagazine
" Tourmaline "

Bicolor Tourmaline 0.649ct Loose Stone, Japan-Germany Sale price¥9,800

Unheated Bicolor Paraiba Tourmaline 0.092ct Loose GIA Sale price¥188,000

Bicolor Paraiba tourmaline 2.477ct loose DGL version Sale price¥228,000

Brazilian unheated parti-colored Paraiba tourmaline 0.411ct loose stone (tri-color) DGL Sale price¥298,000

Brazilian Paraiba tourmaline in quartz 1.602ct loose Sale price¥49,800

Brazilian Paraiba tourmaline in quartz 0.819ct loose Sale price¥15,800

Watermelon tourmaline 3.403ct loose Sale price¥5,980

Watermelon tourmaline 3.250ct loose Sale price¥5,980

Pink tourmaline 0.656ct loose Sale price¥8,800

Tourmaline 0.946ct loose Sale price¥7,980

Tourmaline 0.731ct loose Sale price¥6,980

[Mr. Sanjay] Yellow tourmaline 0.277ct loose Sale price¥8,800

[Mr. Sanjay] Green tourmaline 1.687ct loose Sale price¥15,800

[Mr. Sanjay] Pink tourmaline 0.669ct loose Sale price¥9,800

[Mr. Sanjay] Tourmaline 1.758ct loose Sale price¥9,800

[Mr. Sanjay] Green tourmaline 2.007ct loose Sale price¥29,800

[Mr. Sanjay] Green tourmaline 2.144ct loose Sale price¥25,800

[Mr. Sanjay] Bicolor tourmaline 9.0mm/2.507ct loose Sale price¥29,800

[Mr. Sanjay] Green tourmaline 3.334ct loose Sale price¥25,800

[Mr. Sanjay] Green tourmaline 0.559ct loose Sale price¥6,980

[Mr. Sanjay] Pink tourmaline 0.632ct loose Sale price¥9,800

[Mr. Sanjay] Pink tourmaline 1.575ct loose Sale price¥14,800

[Mr. Sanjay] Pink tourmaline 0.341ct loose Sale price¥8,800

[Mr. Sanjay] Green tourmaline 0.388ct loose Sale price¥8,800

[Mr. Sanjay] Green tourmaline 1.258ct loose Sale price¥29,800

Green tourmaline 6.069ct loose (marron cut) Japanese-German book Sale price¥69,800

K18YG American Benitoite 0.17ct Brazilian Paraiba Tourmaline Ring Sale price¥128,000

Paraiba tourmaline from Brazil 0.129ct loose (Cu:0.6%,MnO:0.9%) Sale price¥29,800

Bicolor tourmaline 3.242ct rough stone from Afghanistan Sale price¥9,800

《Yurakucho Marui 2024112 takeout》Green tourmaline 0.389ct loose stone Sale price¥9,800

Paraiba tourmaline from Brazil 0.039ct loose (CuO:1.5%, MnO:2.0%) Sale price¥24,800

Paraiba tourmaline from Brazil 0.024ct loose (CuO:2.4%, MnO:1.4%) Sale price¥19,800

Paraiba tourmaline from Brazil 0.032ct loose (CuO:2.2%, MnO:1.8%) Sale price¥25,800

Paraiba tourmaline from Brazil 0.041ct loose (CuO:2.6%, MnO:2.5%) Sale price¥35,800

Paraiba tourmaline from Brazil 0.062ct loose (CuO:1.4%, MnO:1.5%) Sale price¥39,800

Brazilian indigolite tourmaline 1.576ct loose Japanese-German book Sale price¥98,000

Paraiba tourmaline from Mozambique 0.240ct loose Sale price¥35,800

Paraiba tourmaline from Mozambique 0.414ct loose Sale price¥55,800

Paraiba tourmaline from Mozambique 0.130ct loose Sale price¥22,800

Paraiba tourmaline from Mozambique 0.246ct loose Sale price¥39,800

Blue tourmaline 0.369ct loose Japanese-German book Sale price¥8,800

Paraiba tourmaline from Mozambique 0.410ct loose Sale price¥32,800

Paraiba tourmaline from Mozambique 0.476ct loose Sale price¥39,800

Paraiba tourmaline from Mozambique 0.252ct loose Sale price¥19,800

Paraiba tourmaline from Mozambique 0.195ct loose Sale price¥15,800

Paraiba tourmaline from Mozambique 0.239ct loose Sale price¥19,800

Paraiba tourmaline from Mozambique 0.083ct loose Sale price¥6,580

Paraiba tourmaline from Mozambique 0.089ct loose Sale price¥7,980

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.

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