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 "

Unheated Brazilian Paraiba Tourmaline 0.110ct Loose Stone AIGS Sale price¥258,000

モザンビーク産エルバイトトルマリン 1.574ctルース（CuO:0.1%,Mn0:3.1％）

Elbaite tourmaline from Mozambique 1.574ct loose stone (CuO: 0.1%, Mn0: 3.1%) Sale price¥59,800

Paraiba tourmaline from Mozambique 0.252ct loose Sale price¥15,800

Paraiba Tourmaline from Mozambique 0.234ct loose stone Sale price¥12,800

Brazilian Indigolite Tourmaline 1.247ct Loose Stone, Japan-Germany Exchange Sale price¥98,000

Tanzanian Chrome Tourmaline 0.988ct Loose Stone Sale price¥6,980

Tanzanian Chrome Tourmaline 0.772ct Loose Stone Sale price¥6,980

Tanzanian Chrome Tourmaline 0.798ct Loose Stone Sale price¥6,980

Tanzanian Chrome Tourmaline 0.546ct Loose Stone Sale price¥4,980

Tanzanian Chrome Tourmaline 0.522ct Loose Stone Sale price¥5,980

Tanzanian Chrome Tourmaline 0.859ct Loose Stone Sale price¥8,800

Brazilian Paraiba Tourmaline 0.405ct loose stone (CuO2.7% CuO2.2%) GIA Sale price¥198,000

Green tourmaline 0.621ct loose stone Sale price¥9,800

Green tourmaline 0.457ct loose stone Sale price¥9,800

Brazilian Paraiba tourmaline in quartz 0.871ct loose Sale price¥18,800

Mozambique colorless tourmaline (acroite) 3.542ct loose stone Sale price¥69,800

Afghanistan indigolite tourmaline 1.732ct loose stone Sale price¥15,800

Afghanistan indigolite tourmaline 1.729ct loose stone Sale price¥15,800

Afghanistan indigolite tourmaline 1.264ct loose stone Sale price¥12,800

Brazilian Paraiba tourmaline in quartz 4.772ct loose Sale price¥59,800

Pink tourmaline 0.416ct loose stone Sale price¥8,800

Green tourmaline 0.090ct loose stone Sale price¥6,980

Bicolor tourmaline 0.423ct loose Sale price¥12,800

Bicolor tourmaline 0.552ct loose Sale price¥12,800

Bicolor tourmaline 0.548ct loose Sale price¥6,980

Green tourmaline 0.637ct loose Sale price¥8,800

Kenyan chrome tourmaline 0.501ct loose stone Sale price¥49,800

Pink tourmaline 6.1mm/1.031ct loose stone Sale price¥9,800

Bicolor tourmaline 1.198ct loose Sale price¥14,800

Pink tourmaline 0.795ct loose Sale price¥9,800

Pink tourmaline 0.466ct loose Sale price¥8,800

Bicolor tourmaline 1.329ct loose Sale price¥9,800

Bicolor tourmaline 0.429ct loose Sale price¥6,980

Bicolor Tourmaline 0.378ct Loose Stone (Hexagonal Cut) Sale price¥8,800

Pink tourmaline 0.819ct loose Sale price¥15,800

Pink tourmaline 0.539ct loose stone (heart shape) Sale price¥12,800

Bicolor Tourmaline 0.792ct Loose (Heart Shape) Sale price¥9,800

Blue Tourmaline 1.460ct Loose Stone Japan-Germany Exchange Sale price¥29,800

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

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.