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 "

[Posted 12529980] Paraiba tourmaline from Brazil 1.649ct loose Sale price¥18,800

Brazilian Paraiba tourmaline in quartz 4.070ct loose Sale price¥12,800

Particolor tourmaline 24.147ct loose Sale price¥49,800

Yellow tourmaline 0.280ct loose Sale price¥3,980

[Koshu Precious Stone Kiriko] Mint color tourmaline 1.530ct loose with patch Sale price¥49,800

[On Sale at 10 PM on August 31st] Paraiba Tourmaline from Mozambique, 3.5mm/0.172ct Loose Stone Sale price¥15,800

[On Sale at 10 PM on September 3rd] Paraiba Tourmaline from Mozambique, 3.2mm/0.119ct Loose Stone Sale price¥9,800

[12560321] Brazilian pink tourmaline 0.234ct loose stone Sale price¥8,800

[On Sale at 10 PM on August 28th] Congo Pink Tourmaline 6.0mm/0.825ct Loose Stone Sale price¥29,800

[12560318] Congo pink tourmaline 0.798ct loose stone Sale price¥25,800

[On Sale at 10 PM on September 1st] Congo Pink Tourmaline 5.0mm/0.463ct Loose Stone Sale price¥24,800

[On Sale at 10 PM on August 28th] Brazilian Blue Tourmaline 0.353ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on August 28th] Brazilian Mint Color Tourmaline 0.145ct Loose Stone Sale price¥8,800

[On Sale at 10 PM on September 1st] Brazilian Green Tourmaline 0.194ct Loose Stone Sale price¥12,800

[12560313] Brazilian Green Tourmaline 0.755ct Loose Sale price¥18,800

[12560312] Brazilian Green Tourmaline 0.374ct Loose Sale price¥9,800

Illusion Tourmaline (Iridescent Tourmaline) 1.356ct Loose Stone Sale price¥39,800

【KEN氏】アフリカ産バイカラートルマリン 0.950ctルース（ファントムカット） - カラッツSTORE

African bicolor tourmaline 0.950ct loose stone (phantom cut) Sale price¥9,800

ブラジル産パライバトルマリン 0.230ctルース（CuO:0.8%、MnO:3.3%）

Paraiba tourmaline from Brazil 0.230ct loose (CuO:0.8%, MnO:3.3%) Sale price¥29,800

Bicolor tourmaline 1.050ct loose Sale price¥8,800

Bicolor tourmaline 0.780ct loose Sale price¥9,800

Pink tourmaline cat's eye 3.800ct loose Sale price¥8,800

ブラジル産パライバトルマリン 0.224ctルース（CuO:0.8%、MnO:1.7%）

Paraiba tourmaline from Brazil 0.224ct loose (CuO:0.8%, MnO:1.7%) Sale price¥29,800

ブラジル産パライバトルマリン 0.203ctルース（CuO:0.9%、MnO:2.6%）

Paraiba tourmaline from Brazil 0.203ct loose (CuO: 0.9%, MnO: 2.6%) Sale price¥29,800

ブラジル産パライバトルマリン 0.455ct原石（CuO:0.9%、MnO:2.2%）

Brazilian Paraiba tourmaline 0.455ct raw stone (CuO: 0.9%, MnO: 2.2%) Sale price¥15,800

ブラジル産パライバトルマリン 0.448ct原石（CuO:2.7%、MnO:2.0%）

Brazilian Paraiba tourmaline 0.448ct raw stone (CuO:2.7%, MnO:2.0%) Sale price¥19,800

ブラジル産パライバトルマリン 0.156ct原石（CuO:2.5%、MnO:0.5%）

Brazilian Paraiba tourmaline 0.156ct raw stone (CuO:2.5%, MnO:0.5%) Sale price¥15,800

ブラジル産パライバトルマリン 0.054ctルース（CuO:1.2%、MnO:3.1%）

Paraiba tourmaline from Brazil 0.054ct loose (CuO:1.2%, MnO:3.1%) Sale price¥15,800

Paraiba tourmaline from Brazil 0.353ct loose (CuO:0.8%, Mn:3.4%) Sale price¥39,800

ブラジル産エルバイトトルマリン（バイカラー） 0.390ct原石（CuO:0.7%、MnO:3.0%）

Brazilian elbaite tourmaline (bicolor) 0.390ct rough stone (CuO: 0.7%, MnO: 3.0%) Sale price¥29,800

Paraiba tourmaline from Brazil 0.230ct loose (CuO:1.2%, MnO:3.3%) Sale price¥29,800

ブラジル産パライバトルマリン 0.160ctルース（ CuO:0.9%、MnO:3.9%）

Paraiba tourmaline from Brazil 0.160ct loose (CuO:0.9%, MnO:3.9%) Sale price¥29,800

Paraiba tourmaline from Brazil 0.213ct loose (CuO: 0.8%, MnO: 3.8%) Sale price¥25,800

Paraiba tourmaline from Brazil 0.244ct loose (CuO:1.0%, MnO:1.9%) Sale price¥29,800

Tourmaline 0.360ct loose stone Sale price¥2,980

Green tourmaline cat's eye 6.480ct loose Sale price¥8,800

Tourmaline cat's eye 4.790ct loose Sale price¥6,980

Tourmaline cat's eye 4.590ct loose Sale price¥12,800

Bicolor tourmaline 0.880ct loose Sale price¥8,800

Bicolor tourmaline 1.220ct loose Sale price¥15,800

[On sale at 10pm on August 16th] Pt950 Tanzanian Bicolor Sapphire 0.398ct Paraiba Tourmaline Ring Sale price¥128,000

1 stone of Brazilian blue tourmaline (3 x 4 mm pear shape/oval cut/3 x 5 mm pear shape/4 x 5 mm oval cut)《Discount available for multiple purchases》 Sale priceFrom ¥2,980

Gem Gacha💎Heart-shaped tourmaline 1 stone💎4mm《Multiple purchase discount available》 Sale price¥2,980

[Limited to 24 stones] Tourmaline Gacha💎Indigolite tourmaline, clover cut, and other single loose stones {Multiple purchase discounts available} Sale price¥2,580

Gem Gacha💎Princess cut tourmaline 1 stone💎 3mm《Multiple purchase discount available》 Sale price¥2,980

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.

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's Initiatives and Social Contributions

We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.

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.