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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Brazilian Paraiba Tourmaline 14.045ct rough stone

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Brazilian Paraiba Tourmaline 14.982ct rough stone

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Paraiba tourmaline from Brazil, 2.761ct rough stone

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Brazilian Green Tourmaline 0.757ct Loose Stone

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ブラジル産パライバトルマリン 0.134ctルース（CuO:0.9%,MnO:0.2%）

Paraiba tourmaline from Brazil 0.134ct loose (CuO:0.9%,MnO:0.2%)

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Paraiba tourmaline from Brazil 0.072ct loose

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Brazilian Paraiba Tourmaline 0.202ct loose stone (CuO: 0.6%, MnO: 0.1%)

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Brazilian Watermelon Tourmaline Rough Stone 7.959ct

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Brazilian Indigolite Tourmaline 3.613ct Loose Stone, Japan-Germany Exchange

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ブラジル産パライバトルマリン・サンタマリアアクアマリン・アイスブルーダイヤモンド・タンザナイト１３石ハーフエタニティリングセット（2.0mm)

Brazilian Paraiba tourmaline, Santa Maria aquamarine, ice blue diamond, and 13-stone tanzanite half eternity ring set (2.0mm)

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Unheated Brazilian Paraiba Tourmaline 0.046ct loose stone (CuO: 1.8%, MnO: 2.1%)

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Unheated Brazilian Paraiba Tourmaline 0.170ct Loose Stone (Bicolor Paraiba Tourmaline) GIA

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Kenyan illusion chrome tourmaline 2.141ct loose stone

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Brazilian Paraiba Tourmaline 25.690ct rough stone (Batalha)

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Brazilian Paraiba Tourmaline 24.816ct rough stone (Batalha)

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Bicolor tourmaline 0.961ct loose

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Brazilian indigolite tourmaline 1.576ct loose Japanese-German book

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Paraiba tourmaline from Brazil 0.026ct loose

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Paraiba tourmaline from Brazil 0.075ct loose

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Paraiba tourmaline from Brazil 3.3mm/0.161ct loose

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Paraiba tourmaline from Brazil 0.064ct loose

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Brazilian bicolor tourmaline 2.547ct loose

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エルバイトトルマリン 4.983ctルース（CuO:0.1%、MnO:1.0%）

Elbaite tourmaline 4.983ct loose (CuO:0.1%, MnO:1.0%)

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Brazilian watermelon Paraiba tourmaline 0.145ct loose

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Green tourmaline 4.423ct loose Japanese-German book

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Bicolor tourmaline 2.245ct loose

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Bicolor tourmaline 2.214ct loose

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Paraiba tourmaline from Brazil 0.99ct loose GIA

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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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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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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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【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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ブラジル産パライバトルマリン 0.144ctルース（CuO:2.5%、MnO:2.7%）

Paraiba tourmaline from Brazil 0.144ct loose (CuO:2.5%, MnO:2.7%)

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Bicolor tourmaline 3.570ct loose

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ブラジル産パライバトルマリン 0.244ctルース（ CuO:1.2%、Mn:1.8%、バフトップ）

Paraiba tourmaline from Brazil 0.244ct loose (CuO:1.2%, Mn:1.8%, buff top)

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ブラジル産パライバトルマリン 0.079ctルース（CuO:1.6%、MnO:2.3%）

Paraiba tourmaline from Brazil 0.079ct loose (CuO:1.6%, MnO:2.3%)

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Unheated Brazilian Paraiba tourmaline 0.170ct loose AIGS

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ブラジル産パライバトルマリン 0.118ctルース（CuO:1.0%、MnO:0.6%）

Paraiba tourmaline from Brazil 0.118ct loose (CuO:1.0%, MnO:0.6%)

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Brazilian Paraiba tourmaline 0.127ct loose (CuO:1.4%, MnO:1.7%)

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Paraiba tourmaline 4.794ct raw stone from Brazil

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Unheated Brazilian Paraiba tourmaline 0.040ct loose AIGS

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.

KARATZ・Five Commitments

So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.

KARATZの取り組みと社会貢献

業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。

KARATZ Books

These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.

jeweler's tools

For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.