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 "

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Paraiba tourmaline from Mozambique 0.553ct loose (CuO: 0.2%, MnO: 0.3%)

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Paraiba tourmaline from Brazil 0.300ct loose

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Paraiba tourmaline from Brazil 0.181ct loose

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Paraiba tourmaline from Brazil 0.200ct loose

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Paraiba tourmaline from Brazil 0.205ct loose

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Paraiba tourmaline from Brazil 0.99ct loose GIA

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Bicolor tourmaline 0.404ct loose (rose cut)

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Paraiba tourmaline from Brazil 0.553ct loose

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ブラジル産パライバトルマリン 0.096ctルース（CuO:1.3%、MnO:2.9%）

Paraiba tourmaline from Brazil 0.096ct loose (CuO:1.3%, MnO:2.9%)

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ブラジル産パライバトルマリン 0.076ctルース（CuO:2.2%、MnO:1.8%）

Paraiba tourmaline from Brazil 0.076ct loose (CuO:2.2%, MnO:1.8%)

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ブラジル産パライバトルマリン 0.071ctルース（CuO:1.4%、MnO:1.4%）

Paraiba tourmaline from Brazil 0.071ct loose (CuO:1.4%, MnO:1.4%)

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ブラジル産パライバトルマリン 0.078ctルース（CuO:2.2%、MnO:2.5%）

Paraiba tourmaline from Brazil 0.078ct loose (CuO:2.2%, MnO:2.5%)

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ブラジル産パライバトルマリン 0.063ctルース（CuO:3.1%、MnO:2.7%）

Paraiba tourmaline from Brazil 0.063ct loose (CuO:3.1%, MnO:2.7%)

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[Mr. Sanjay] Pink tourmaline 1.540ct loose

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Pink tourmaline 0.442ct loose

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ブラジル産パライバトルマリン 0.022ctルース（CuO:1.8%、MnO:1.6%）

Paraiba tourmaline from Brazil 0.022ct loose (CuO:1.8%, MnO:1.6%)

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【カラフリ】Pt900トルマリン2.48ct ダイヤモンド0.48ctリング（ブルーグリーン） - カラッツSTORE

[Colorful] Pt900 tourmaline 2.48ct diamond 0.48ct ring (blue green)

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ブラジル産バイカラーパライバトルマリン 0.068ctルース（CuO:1.4%、MnO:0.6%）

Brazilian bicolor Paraiba tourmaline 0.068ct loose (CuO:1.4%, MnO:0.6%)

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ブラジル産パライバトルマリン 0.091ctルース（バイカラー）（CuO:1.4%、MnO:0.1%）

Paraiba tourmaline from Brazil 0.091ct loose (bicolor) (CuO:1.4%, MnO:0.1%)

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ブラジル産パーティカラーパライバトルマリン 0.187ctルース（CuO:1.3%、MnO:3.3%）

Particolor Paraiba tourmaline from Brazil 0.187ct loose (CuO:1.3%, MnO:3.3%)

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【KEN氏】アフリカ産ピンクトルマリン 0.670ctルース（ファントムカット） - カラッツSTORE

[Mr. KEN] African pink tourmaline 0.670ct loose (phantom cut)

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Bicolor tourmaline 0.740ct loose

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ブラジル産パライバトルマリンキャッツアイ 0.720ctルース（CuO:2.2%,Mno:3.6%）

Brazilian Paraiba tourmaline cat's eye 0.720ct loose (CuO:2.2%, Mno:3.6%)

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ブラジル産バイカラーパライバトルマリン 0.136ctルース（CuO:1.2%、MnO:3.0%）

Brazilian bicolor Paraiba tourmaline 0.136ct loose (CuO:1.2%, MnO:3.0%)

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Brazilian bicolor Paraiba tourmaline 0.107ct

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ブラジル産パライバトルマリン 0.125ctルース（CuO:2.5%、MnO:3.0%）

Paraiba tourmaline from Brazil 0.125ct loose (CuO:2.5%, MnO:3.0%)

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Paraiba tourmaline from Brazil 0.048ct loose (CuO:1.7%, MnO:1.7%)

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【12534202掲載】非加熱ブラジル産パライバトルマリン 0.110ctルース

Unheated Brazilian Paraiba tourmaline 0.110ct loose AIGS

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Unheated Brazilian Paraiba tourmaline 0.170ct loose AIGS

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Paraiba tourmaline 1.460ct raw stone from Brazil

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[KEN] Bicolor tourmaline 0.180ct loose

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エルバイトトルマリン 0.366ct原石（CuO:0.8%、MnO:3.2%,パーティカラー）

Elbaite tourmaline 0.366ct rough stone (CuO: 0.8%, MnO: 3.2%, parti color)

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Green tourmaline 5.804ct loose

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Bicolor tourmaline 2 stone set 1.220ct loose

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Pink tourmaline cat's eye 6.970ct loose

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Bicolor tourmaline cat's eye 3.580ct loose

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Particolor tourmaline 1.569ct loose

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Unheated bicolor Brazilian Paraiba tourmaline 0.133ct loose GIA

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Paraiba tourmaline from Mozambique 1.810ct loose AIGS

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ブラジル産パライバトルマリン 0.196ct原石（CuO:1.1%、MnO:3.7%）

Brazilian Paraiba tourmaline 0.196ct raw stone (CuO:1.1%, MnO:3.7%)

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ブラジル産パライバトルマリン 0.195ct原石（CuO:1.0%、MnO:3.8%）

Brazilian Paraiba tourmaline 0.195ct raw stone (CuO: 1.0%, MnO: 3.8%, bicolor)

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ブラジル産パライバトルマリン 0.025ct原石（CuO:3.2%、MnO:1.0%）

Brazilian Paraiba tourmaline 0.025ct raw stone (CuO: 3.2%, MnO: 1.0%)

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ブラジル産パライバトルマリン 0.378ct原石（CuO:1.2%、MnO:2.6%）

Brazilian Paraiba Tourmaline 0.378ct rough stone (CuO:1.2%, MnO:2.6%)

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【さくらインカット】ピンクトルマリン 7mmルースワッペン付 - カラッツSTORE

[Sakura in-cut] Pink tourmaline 7mm loose with patch

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[Sakura Incut] Pink Tourmaline 7mm Loose with Patch

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Brazilian Paraiba tourmaline 0.107ct raw stone (CuO:2.3%, MnO:2.9%)

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Paraiba tourmaline 2.790ct raw stone from Brazil

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Bicolor tourmaline 3.590ct loose

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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