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 "

Pink tourmaline cat's eye 3.800ct loose Sale price¥15,800

Tourmaline cat's eye 3.310ct loose Sale price¥8,800

Green tourmaline cat's eye 5.210ct loose Sale price¥29,800

Bicolor tourmaline cat's eye 4.730ct loose Sale price¥22,800

Bicolor tourmaline cat's eye 2.640ct loose Sale price¥19,800

Bicolor tourmaline cat's eye 2.630ct loose Sale price¥25,800

【さくらインカット】グリーントルマリン 9.5mm/2.640ct《コラボ》ルースワッペン付 - カラッツSTORE

[Sakura Incut] Green Tourmaline 9.5mm/2.640ct《Collaboration》Loose with emblem Sale price¥69,800

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¥39,800

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¥35,800

ブラジル産パライバトルマリン 0.200ctルース（CuO:0.7%、MnO:4.0%）

Paraiba tourmaline from Brazil 0.200ct loose (CuO: 0.7%, MnO: 4.0%) Sale price¥39,800

[KEN] Pink tourmaline 0.530ct loose Sale price¥3,980

ブラジル産バイカラーパライバトルマリン 0.650ct原石（CuO:1.2%、MnO:3.3%）

Brazilian bicolor Paraiba tourmaline 0.650ct raw stone (CuO: 1.2%, MnO: 3.3%) Sale price¥59,800

ブラジル産パライバトルマリン 0.252ct原石（ CuO:2.3%、MnO:2.8%）

Brazilian Paraiba tourmaline 0.252ct raw stone (CuO:2.3%, MnO:2.8%) Sale price¥14,800

ブラジル産パライバトルマリン 0.213ct原石（ CuO:1.4%、MnO:1.2%）

Brazilian Paraiba tourmaline 0.213ct raw stone (CuO:1.4%, MnO:1.2%) Sale price¥15,800

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¥19,800

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¥29,800

ブラジル産パライバトルマリン 0.225ct原石（ CuO:2.1%、MnO:0.9%）

Brazilian Paraiba tourmaline 0.225ct raw stone (CuO:2.1%, MnO:0.9%) Sale price¥12,800

ブラジル産パライバトルマリン 0.184ct原石（CuO:1.5%、MnO:0.6%）

Brazilian Paraiba tourmaline 0.184ct raw stone (CuO:1.5%, MnO:0.6%) Sale price¥14,800

ブラジル産パライバトルマリン 0.180ct原石（ CuO:1.8%、MnO:0.1%）

Brazilian Paraiba tourmaline 0.180ct raw stone (CuO:1.8%, MnO:0.1%) Sale price¥12,800

ブラジル産パライバトルマリン 0.285ct原石（CuO:1.7%、MnO:2.7%）

Brazilian Paraiba tourmaline 0.285ct raw stone (CuO:1.7%, MnO:2.7%) 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¥22,800

[Koshu Precious Stone Kiriko] Bicolor Tourmaline 4.150ct Loose with Patch Sale price¥98,000

Brazilian Bicolor Tourmaline 4.554ct Ruth Japanese-German Edition Sale price¥298,000

Bicolor tourmaline 1.039ct loose Sale price¥39,800

Bicolor tourmaline 1.130ct loose Sale price¥19,800

Bicolor tourmaline 0.880ct loose Sale price¥12,800

Bicolor tourmaline 0.750ct loose Sale price¥9,800

Bicolor tourmaline 1.220ct loose Sale price¥25,800

Bicolor tourmaline 1.240ct loose Sale price¥25,800

Canary yellow tourmaline 0.340ct loose Sale price¥7,980

Brazilian Paraiba tourmaline in quartz 4.070ct loose Sale price¥19,800

Brazilian Paraiba tourmaline in quartz 2.864ct loose Sale price¥15,800

Brazilian Paraiba tourmaline in quartz 2.801ct loose Sale price¥16,800

Particolor tourmaline 24.147ct loose Sale price¥59,800

ブラジル産パライバトルマリン 0.229ctルース（CuO:0.6%、MnO:1.0%）

Brazilian Paraiba tourmaline 0.229ct loose (CuO:0.6%, MnO:1.0%) Sale price¥39,800

ブラジル産パライバトルマリン 0.194ctルース（CuO:1.2%、MnO:1.6%）

Brazilian Paraiba tourmaline 0.194ct loose (CuO:1.2%, MnO:1.6%) Sale price¥35,800

Brazilian Paraiba tourmaline in quartz 3.678ct loose Sale price¥19,800

Unheated Brazilian Paraiba tourmaline 0.040ct loose AIGS Sale price¥39,800

[Mr. KEN] Tourmaline from Africa 0.767ct loose Sale price¥3,980

[Mr. KEN] Tourmaline from Africa 0.709ct loose Sale price¥4,980

[Mr. KEN] Tourmaline from Africa 0.374ct loose Sale price¥3,980

【12528224掲載】ブラジル産パライバトルマリンインクォーツ 1.311ctルース

Brazilian Paraiba tourmaline in quartz 1.311ct loose Sale price¥12,800

Brazilian Paraiba tourmaline in quartz 1.297ct loose Sale price¥12,800

【12528217掲載】ブラジル産パライバトルマリンインクォーツ 0.883ctルース

Brazilian Paraiba tourmaline in quartz 0.883ct loose Sale price¥15,800

【12528216掲載】ブラジル産パライバトルマリンインクォーツ 0.872ctルース

Brazilian Paraiba tourmaline in quartz 0.872ct loose Sale price¥12,800

Blue tourmaline 1.520ct loose Sale price¥22,800

Blue tourmaline 1.320ct loose Sale price¥19,800

Blue tourmaline 1.060ct loose Sale price¥15,800

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.

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