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 "

Blue tourmaline 3 stone set 0.620ct loose Sale price¥9,800

[KEN] Yellow tourmaline 0.660ct loose Sale price¥8,800

【KEN氏】ミントカラートルマリン 0.620ctルース - カラッツSTORE

[KEN] Mint color tourmaline 0.620ct loose Sale price¥5,980

[KEN] Yellow tourmaline 0.600ct loose Sale price¥6,980

Yellow tourmaline 0.280ct loose Sale price¥5,980

Pink tourmaline 0.535ct loose Sale price¥6,980

Blue tourmaline 1.060ct loose Sale price¥19,800

Bicolor tourmaline 1.180ct loose Sale price¥9,800

[Koshu Precious Stone Kiriko] Mint color tourmaline 1.530ct loose with patch Sale price¥59,800

Pink Tourmaline 6.549ct Loose (Elbaite-Liddicoatite) Japanese-German Appraisal Sale price¥298,000

【KEN氏】ミントカラートルマリン4mmルース（ローズカット） - カラッツSTORE

[KEN] Mint color tourmaline 4mm loose (rose cut) Sale price¥6,980

Green tourmaline 4mm loose (rose cut) Sale price¥3,980

[KEN] Bicolor tourmaline 5mm loose Sale price¥6,980

Unheated bicolor Paraiba tourmaline 0.105ct loose stone GIA Sale price¥198,000

Bicolor tourmaline 0.910ct loose Sale price¥5,980

Green tourmaline 0.520ct loose Sale price¥4,980

Pink tourmaline 0.550ct loose Sale price¥3,980

Brazilian Blue Green Tourmaline 3.707ct Loose Stone Sale price¥59,800

トルマリン 0.672ctルース - KARATZ STORE｜カラッツSTORE

Tourmaline 0.672ct loose Sale price¥3,980

バイカラートルマリン 0.401ctルース - KARATZ STORE｜カラッツSTORE

{Yurakucho Marui 2024112 takeout} Bicolor tourmaline 0.401ct loose stone Sale price¥12,800

トルマリン 0.747ctルース - KARATZ STORE｜カラッツSTORE

Tourmaline 0.747ct loose Sale price¥5,980

ブラジル産パライバトルマリン 0.49ctルース - KARATZ STORE｜カラッツSTORE

Paraiba tourmaline from Brazil 0.49ct loose Sale price¥45,800

Sold out

ブラジル産パライバトルマリン 0.162ctルース（CuO:2.5%、Mn:2.8%）

Paraiba tourmaline from Brazil 0.162ct loose (CuO:2.5%, Mn:2.8%)

Sold out

Indigolite tourmaline 1.398ct loose Japanese-German edition

Sold out

Color change tourmaline 0.328ct loose Japanese-German edition

Sold out

Bicolor tourmaline 1.980ct loose

Sold out

Pt900/K18パライバトルマリン0.05ct リング（CuO:0.8%、MnO:0.4%） - カラッツSTORE

Pt900/K18 Paraiba tourmaline 0.05ct ring (CuO:0.8%, MnO:0.4%)

Sold out

[KEN] Tourmaline 0.240ct loose

Sold out

[KEN] Tourmaline 0.463ct loose

Sold out

ブラジル産パライバトルマリン 0.092ctルース（CuO:1.6%、MnO:0.4%）

Paraiba tourmaline from Brazil 0.092ct loose (CuO:1.6%, MnO:0.4%)

Sold out

ブラジル産パライバトルマリン 0.123ctルース（ CuO:1.4%、MnO:3.4%）

Paraiba tourmaline from Brazil 0.123ct loose (CuO:1.4%, MnO:3.4%)

Sold out

【カラフリ】Pt900/Pt850パライバトルマリン0.17ct ペンダント（ネックレス）（CuO:1.74%,Mno:3.72%）中宝鑑 - カラッツSTORE

[Colorful] Pt900/Pt850 Paraiba Tourmaline 0.17ct Pendant (Necklace) (CuO:1.74%, Mno:3.72%) Chuhokan

Sold out

[Koshu precious stone Kiriko plusthree] Particolor tourmaline 3.544ct loose

Sold out

[Cat cut] Pink tourmaline 5mm/0.461ct《Collaboration》 Loose

Sold out

[Cat cut] Bicolor tourmaline 5mm/0.490ct《Collaboration》 Loose

Sold out

[Cat cut] Bicolor tourmaline 5mm/0.502ct loose

Sold out

ブラジル産パライバトルマリン 0.103ctルース（CuO:2.6%、MnO:3.0%）

Paraiba tourmaline from Brazil 0.103ct loose (CuO:2.6%, MnO:3.0%)

Sold out

Indigolite tourmaline 1.593ct loose

Sold out

K18ベニトアイト0.11ct・アイスブルーダイヤモンド・パライバトルマリンリング - カラッツSTORE

K18 Benitoite 0.11ct/Ice Blue Diamond/Paraiba Tourmaline Ring

Sold out

ブラジル産パライバトルマリン 0.643ctルース（CuO:4.7%、MnO:2.1%）

Paraiba tourmaline from Brazil 0.643ct loose (CuO:4.7%, MnO:2.1%)

Sold out

ブラジル産パライバトルマリン 0.135ctルース（CuO:1.7%、MnO:2.7%）

Paraiba tourmaline from Brazil 0.135ct loose (CuO:1.7%, MnO:2.7%)

Sold out

ブラジル産パライバトルマリン 0.536ctルース（ CuO:0.8%、MnO:3.7%）

Paraiba tourmaline from Brazil 0.536ct loose (CuO:0.8%, MnO:3.7%)

Sold out

Blue watermelon tourmaline 8.762ct loose

Sold out

Paraiba tourmaline 55.051ct raw stone from Brazil

Sold out

Brazilian Paraiba tourmaline 216.126ct raw stone

Sold out

Brazilian Paraiba tourmaline 115.096ct raw stone

Sold out

Brazilian Paraiba Tourmaline 174.978ct rough stone

Sold out

Brazilian Paraiba tourmaline 92.715ct raw stone

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.

KARATZ・Five Commitments