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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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Sold out Bi-color tourmaline gacha💎In addition, one out of every two people will win a watermelon tourmaline (multiple purchase discount available)

Bi-color tourmaline gacha💎In addition, one out of every two people will win a watermelon tourmaline (multiple purchase discount available)

Sold out ウォーターメロントルマリン原石 1石

Watermelon tourmaline rough stone 1 stone《Multiple purchase discount available》

Sold out Set of 2 to 5 stones such as garden quartz and tourmaline in quartz

Set of 2 to 5 stones such as garden quartz and tourmaline in quartz

Sold out Bi-color fluorite & bi-color tourmaline (watermelon tourmaline) 2 stone set (one out of every two will give you an extra watermelon tourmaline)

Bi-color fluorite & bi-color tourmaline (watermelon tourmaline) 2 stone set (one out of every two will give you an extra watermelon tourmaline)

Sold out マルチカラートルマリン1石ルース（オクタゴナルカット）

Multi-colored tourmaline 1 stone loose (octagonal cut)《Multiple purchase discount available》

Sold out Brazilian Paraiba Tourmaline (1.0mm, top quality)《Multiple purchase discount available》

Brazilian Paraiba Tourmaline (1.0mm, top quality)《Multiple purchase discount available》

Sold out ブラジル産パライバトルマリン（バターリャ）1石 1.1mm - KARATZ STORE｜カラッツSTORE

Brazilian Paraiba tourmaline (Batalha) 1 stone 1.1mm《Multiple purchase discount available》

Sold out 1 Brazilian Paraiba tourmaline stone (cabochon cut, average 0.25 ct)

1 Brazilian Paraiba tourmaline stone (cabochon cut, average 0.25 ct)

Sold out Watermelon tourmaline raw stone + loose 3 stone set

Watermelon tourmaline raw stone + loose 3 stone set

Sold out Gem Gacha💎1 Paraiba Tourmaline from Brazil (Batalha Mine)

Gem Gacha💎1 Paraiba Tourmaline from Brazil (Batalha Mine)

Sold out 【サンジェ氏】カスタムカットのトルマリン1石（アクロアイト・ルベライト・ピンクトルマリン）《複数購入割引》 - カラッツSTORE

[Mr. Sanjay] Custom-cut tourmaline 1 stone (acroite, rubellite, pink tourmaline)《Multiple purchase discount》

Sold out 1 stone loose tourmaline from Tanzania (3mm, octagonal cut)《Discount available for multiple purchases》

1 stone loose tourmaline from Tanzania (3mm, octagonal cut)《Discount available for multiple purchases》
Sold out Brazilian Paraiba tourmaline (Batalha) 1 stone 1.3-1.4mm

Brazilian Paraiba tourmaline (Batalha) 1 stone 1.3-1.4mm

Sold out マルチカラートルマリン 1石（オクタゴナルカット,八角形,4mm） - KARATZ STORE｜カラッツSTORE

1 multi-colored tourmaline (octagonal cut, octagonal, 4mm)

Sold out 《Limited to 9 stones》 1 stone tourmaline from Brazil《Discount available for multiple purchases》

《Limited to 9 stones》 1 stone tourmaline from Brazil《Discount available for multiple purchases》
Sold out [Limited to 7 sets] October birthstone tourmaline 3 stone set (1 rough stone from Afghanistan, 2 loose 2.5mm stones)

[Limited to 7 sets] October birthstone tourmaline 3 stone set (1 rough stone from Afghanistan, 2 loose 2.5mm stones)

Sold out バイカラートルマリン＆バイカラーフローライト 2石セット

Bicolor tourmaline & bicolor fluorite 2 stone set

Sold out 【KEN氏】ピクセルカットのトルマリン1石 - カラッツSTORE

[Mr. KEN] 1 pixel-cut tourmaline stone (discount available for multiple purchases)

Sold out Paraiba tourmaline from Brazil (Batalha mine, 2.0 x 1.5mm)《Multiple purchase discount available》

Paraiba tourmaline from Brazil (Batalha mine, 2.0 x 1.5mm)《Multiple purchase discount available》

Sold out Black Tourmaline in Quartz 1 stone《Multiple purchase discount available》

Black Tourmaline in Quartz 1 stone《Multiple purchase discount available》

Sold out トルマリン2石（オクタゴナルカット,八角形） - KARATZ STORE｜カラッツSTORE

2 tourmaline stones (octagonal cut, octagonal)《Multiple purchase discount available》

Sold out [Limited 5 stones] Rare stone gacha 💎 Win Red Beryl, Alexandrite, Paraiba Tourmaline [Multiple purchase discount available]

[Limited 5 stones] Rare stone gacha 💎 Win Red Beryl, Alexandrite, Paraiba Tourmaline [Multiple purchase discount available]
Sold out 《Limited 5 stones》 Paraiba tourmaline from Brazil (Batalha mine, 2.2 x 1.7mm) 《Multiple purchase discount available》

《Limited 5 stones》 Paraiba tourmaline from Brazil (Batalha mine, 2.2 x 1.7mm) 《Multiple purchase discount available》

Sold out 1 stone blue tourmaline from Afghanistan (discount available for multiple purchases)

1 stone blue tourmaline from Afghanistan (discount available for multiple purchases)

Sold out ウォーターメロントルマリン 1石 - KARATZ STORE｜カラッツSTORE

Watermelon tourmaline loose 1 stone

Sold out Limited to 4 stones: 1 loose Brazilian blue tourmaline stone. Discounts available for multiple purchases.

Limited to 4 stones: 1 loose Brazilian blue tourmaline stone. Discounts available for multiple purchases.
Sold out 《訳あり》サンジェ氏カット（ウォーターメロントルマリン・イエローサファイア・オレゴンサンストーンなど）

Limited to 9 stones, with a flaw, Sanjay cut (watermelon tourmaline, yellow sapphire, Oregon sunstone, etc.), multiple purchase discounts available
Sold out ブラジル産パライバトルマリンインクォーツ 0.565ctルース

Brazilian Paraiba tourmaline in quartz 0.565ct loose
Sold out カラーチェンジトルマリン 0.529ctルース 日独鑑

Color change tourmaline 0.529ct loose Japanese-German edition

Sold out ブラジル産パライバトルマリン 0.086ctルース（CuO:2.4%、MnO:3.3%）

Paraiba tourmaline from Brazil 0.086ct loose (CuO:2.4%, MnO:3.3%)

Sold out Tourmaline in quartz 1.840ct loose

Tourmaline in quartz 1.840ct loose

Sold out バイカラートルマリン 0.485ctルース - KARATZ STORE｜カラッツSTORE

Bicolor tourmaline 0.485ct loose

Sold out 【11/15 22時販売】ブラジル産バイカラートルマリン 0.961ctルース

【11/15 22時販売】ブラジル産バイカラートルマリン 0.961ctルース
Sold out インディゴライトトルマリン 0.472ルース

[11/2 22:00 Sale] Brazilian Indigolite Tourmaline 0.472ct Loose JTL Grade
Sold out [On sale at 10pm on 10/20] Brazilian bicolor tourmaline 2.020ct loose stone

[On sale at 10pm on 10/20] Brazilian bicolor tourmaline 2.020ct loose stone
Sold out [On sale at 10pm on 10/16] Brazilian bicolor tourmaline 0.649ct loose stone (rose cut)

[On sale at 10pm on 10/16] Brazilian bicolor tourmaline 0.649ct loose stone (rose cut)
Sold out Brazilian Paraiba Tourmaline 0.770ct Loose Gübelin Certificate of Authenticity

Brazilian Paraiba Tourmaline 0.770ct Loose Gübelin Certificate of Authenticity
Sold out ブラジル産パライバトルマリン 1.852ct原石

Brazilian Paraiba Tourmaline 1.852ct rough stone
Sold out ブラジル産パライバトルマリン 3.485ct原石

Brazilian Paraiba Tourmaline 3.485ct rough stone
Sold out 非加熱ブラジル産パライバトルマリン 0.122ctルース《エイトリータ》（CuO:1.9%、MnO:1.1%）

[On sale from 10/2 at 10pm] Unheated Brazilian Paraiba Tourmaline 0.122ct loose stone "Eitreta" (CuO: 1.9%, MnO: 1.1%)
Sold out K18YGブラジル産パライバトルマリン0.33ctリング

K18YG Brazilian Paraiba Tourmaline 0.33ct Ring
Sold out ブラジル産バイカラートルマリン 3.433ctルース

Brazilian bicolor tourmaline 3.433ct loose stone
Sold out Brazilian Indigolite Tourmaline 0.364ct Loose Stone, Japan-Germany Exchange

Brazilian Indigolite Tourmaline 0.364ct Loose Stone, Japan-Germany Exchange
Sold out 【12549560掲載】ブラジル産パライバトルマリンインクォーツ 1.165ctルース

[On sale at 10pm on 7/31] Brazilian Paraiba Tourmaline in Quartz 1.165ct loose stone
Sold out Limited to 4 stones Gem gacha💎 Tourmaline cut by American polisher KEN (for beginners) Multiple purchase discounts available

Limited to 4 stones Gem gacha💎 Tourmaline cut by American polisher KEN (for beginners) Multiple purchase discounts available
Sold out ブラジル産グリーントルマリン 2.132ctルース

Brazilian Green Tourmaline 2.132ct Loose Stone
Sold out 非加熱ブラジル産パライバトルマリン 0.073ctルース（CuO:1.9%、MnO:2.1%）

Unheated Brazilian Paraiba Tourmaline 0.073ct loose stone (CuO: 1.9%, MnO: 2.1%)
Sold out モザンビーク産パライバトルマリン 0.372ctルース

Paraiba Tourmaline from Mozambique 0.372ct loose stone (UV type)

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