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 "

Paraiba tourmaline from Mozambique 1.581ct loose stone (CuO: 0.5%, MnO: 1.0%) Sale price¥128,000

モザンビーク産エルバイトトルマリン 1.456ctルース（CuO:0.1%,MnO:0.4%）

Elbaite tourmaline from Mozambique 1.456ct loose stone (CuO: 0.1%, MnO: 0.4%) Sale price¥69,800

Brazilian Paraiba Tourmaline 0.062ct loose stone (CuO: 2.2%, MnO: 4.4%) Sale price¥29,800

Unheated Brazilian Paraiba Tourmaline 0.043ct loose stone (CuO: 1.4%, MnO: 4.0%) Sale price¥88,800

Unheated Brazilian Paraiba Tourmaline 0.046ct loose stone (CuO: 1.7%, MnO: 2.5%) Sale price¥98,000

Unheated Brazilian Paraiba Tourmaline 0.046ct loose stone (CuO: 2.1%, MnO: 2.3%) Sale price¥98,000

Unheated Brazilian Paraiba Tourmaline 0.023ct loose stone (CuO: 1.3%, MnO: 0.5%) Sale price¥29,800

Unheated Brazilian Paraiba Tourmaline 0.023ct loose stone (CuO: 1.9%, MnO: 2.1%) Sale price¥29,800

Brazilian Paraiba Tourmaline 0.177ct loose stone (CuO: 2.1%, MnO: 1.3%) Sale price¥45,800

Brazilian bicolor tourmaline 1.538ct loose stone Sale price¥39,800

Brazilian bicolor tourmaline 2.153ct loose stone Sale price¥29,800

Tanzanian Chrome Tourmaline 0.760ct Loose Stone Sale price¥6,980

Tanzanian Chrome Tourmaline 0.753ct Loose Stone Sale price¥6,980

Tanzanian Chrome Tourmaline 0.728ct Loose Stone Sale price¥7,980

[E_27 Yurakucho Marui Takeout] Bicolor Tourmaline 4.448ct Loose Sale price¥55,800

Paraiba tourmaline from Brazil 0.023ct loose Sale price¥19,800

Paraiba tourmaline from Brazil 0.018ct loose Sale price¥14,800

Paraiba Tourmaline from Mozambique 0.154ct loose stone Sale price¥9,800

Paraiba Tourmaline from Mozambique 0.153ct loose stone Sale price¥9,800

Paraiba tourmaline from Brazil 0.122ct loose Sale price¥35,800

[E_27 Yurakucho Marui Take-out] Brazilian Paraiba Tourmaline 0.169ct Loose Sale price¥45,800

[E_27 Yurakucho Marui Take-out] Paraiba Tourmaline from Mozambique 0.171ct Loose Sale price¥8,980

Paraiba tourmaline from Brazil 0.049ct loose Sale price¥19,800

Paraiba tourmaline from Brazil 0.061ct loose Sale price¥25,800

Paraiba tourmaline from Brazil 0.057ct loose Sale price¥22,800

Unheated Brazilian Paraiba Tourmaline 0.066ct loose stone (CuO: 1.7%, MnO: 2.4%) Sale price¥79,800

Unheated Brazilian Paraiba Tourmaline 0.055ct loose stone (CuO: 1.9%, MnO: 2.2%) Sale price¥59,800

Unheated Brazilian Paraiba Tourmaline 0.061ct loose stone (CuO: 1.7%, MnO: 2.2%) Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.065ct loose stone (CuO: 2.0%, MnO: 2.4%) Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.069ct loose stone (CuO: 1.6%, MnO: 2.6%) Sale price¥79,800

Unheated Brazilian Paraiba Tourmaline 0.059ct loose stone (CuO: 1.4%, MnO: 2.7%) Sale price¥63,800

Unheated Brazilian Paraiba Tourmaline 0.088ct loose stone (CuO: 1.9%, MnO: 2.3%) Sale price¥98,000

Unheated Brazilian Paraiba Tourmaline 0.081ct loose stone (CuO: 2.1%, MnO: 2.3%) Sale price¥98,000

Blue watermelon tourmaline 6.815ct loose Sale price¥49,800

Blue watermelon tourmaline 2.380ct loose Sale price¥15,800

Namibian Green Tourmaline 7.0mm/1.206ct Loose Stone (Lagoon Tourmaline) Sale price¥59,800

Brazilian Bicolor Tourmaline 7.2mm/1.326ct Loose Stone Sale price¥19,800

Tanzanian pink tourmaline 0.558ct loose stone Sale price¥12,800

Brazilian Green Tourmaline 2.218ct Loose Sale price¥29,800

Brazilian Blue Tourmaline 0.196ct Loose Sale price¥8,800

Brazilian pink tourmaline 0.968ct loose stone Sale price¥25,800

Brazilian Pink Tourmaline 0.561ct Loose Stone Sale price¥9,800

Brazilian Pink Tourmaline 0.470ct Loose Stone Sale price¥12,800

Brazilian Pink Tourmaline 0.862ct Loose Stone Sale price¥15,800

非加熱ブラジル産パライバトルマリン 0.051ctルース（CuO:1.9%、MnO:2.5%）

Unheated Brazilian Paraiba Tourmaline 0.051ct loose stone (CuO: 1.9%, MnO: 2.5%) Sale price¥55,800

Unheated Brazilian Paraiba Tourmaline 0.052ct loose stone (CuO: 2.0%, MnO: 2.2%) Sale price¥55,800

[E_27 Yurakucho Marui Takeout] Unheated Brazilian Paraiba Tourmaline 0.069ct loose stone (CuO: 2.1%, MnO: 2.1%) Sale price¥88,800

Unheated Brazilian Paraiba Tourmaline 0.072ct loose stone (CuO: 1.8%, MnO: 2.3%) Sale price¥69,800

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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