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 0.053ct loose stone (CuO: 1.4%, MnO: 3.1%) Sale price¥62,800

[12550851] 2.944ct Mozambique pink tourmaline loose stone Sale price¥49,800

[12545602] Paraiba Tourmaline from Mozambique 0.321ct loose stone Sale price¥15,800

Unheated Brazilian Paraiba Tourmaline 0.047ct loose stone (CuO: 1.6%, MnO: 2.4%) Sale price¥98,000

モザンビーク産パライバトルマリン 0.784ctルース（CuO:0.3%,MnO:1.3%）

[12550887] Paraiba Tourmaline from Mozambique 0.784ct loose stone Sale price¥128,000

Paraiba Tourmaline from Mozambique 0.360ct loose stone Sale price¥18,800

非加熱ブラジル産パライバトルマリン 0.065ctルース（CuO:1.6%、MnO:2.4%）

Unheated Brazilian Paraiba Tourmaline 0.065ct loose stone (CuO: 1.6%, MnO: 2.4%) Sale price¥69,800

Paraiba Tourmaline from Mozambique 0.412ct loose stone Sale price¥22,800

Paraiba tourmaline 1.190ct raw stone from Brazil Sale price¥4,980

【KEN氏】ブラジル産グリーントルマリン 5.2mm/0.584ctルース（セミオーダーメイドセット）

[Staff Selection] [Mr. KEN] Brazilian Green Tourmaline 5.2mm/0.584ct Loose Stone (Semi-Custom Made Set) Sale price¥47,800

Brazilian Indigolite Tourmaline 7.002ct Loose Stone, Japan-Germany Exchange Sale price¥198,000

【スタッフセレクション】【KEN氏】タンザニア産ピンクトルマリン 0.290ctルース（セミオーダーメイドセッ

[Staff Selection] [Mr. KEN] Tanzanian Pink Tourmaline 0.290ct Loose (Semi-Custom Made Set) Sale price¥74,800

[Staff Selection] Brazilian Green Tourmaline 0.475ct Loose (Semi-Custom Made Set) Sale price¥47,800

Unheated Brazilian Paraiba Tourmaline 0.072ct loose stone (CuO: 1.8%, MnO: 2.3%) Sale price¥69,800

[On sale from 10/2 at 10pm] Unheated Brazilian Paraiba Tourmaline 0.069ct loose stone (CuO: 2.1%, MnO: 2.1%) Sale price¥88,800

Unheated Brazilian Paraiba Tourmaline 0.052ct loose stone (CuO: 2.0%, MnO: 2.2%) Sale price¥55,800

非加熱ブラジル産パライバトルマリン 0.051ctルース（CuO:1.9%、MnO:2.5%）

Unheated Brazilian Paraiba Tourmaline 0.051ct loose stone (CuO: 1.9%, MnO: 2.5%) Sale price¥55,800

Brazilian Pink Tourmaline 0.862ct Loose Stone Sale price¥15,800

Brazilian Pink Tourmaline 0.470ct Loose Stone Sale price¥12,800

Brazilian Pink Tourmaline 0.561ct Loose Stone Sale price¥9,800

Brazilian pink tourmaline 0.968ct loose stone Sale price¥25,800

Brazilian Blue Tourmaline 0.196ct Loose Sale price¥8,800

Brazilian Green Tourmaline 2.218ct Loose Sale price¥29,800

Tanzanian pink tourmaline 0.558ct loose stone Sale price¥12,800

Brazilian Bicolor Tourmaline 7.2mm/1.326ct Loose Stone Sale price¥19,800

Namibian Green Tourmaline 7.0mm/1.206ct Loose Stone (Lagoon Tourmaline) Sale price¥59,800

Blue watermelon tourmaline 2.380ct loose Sale price¥15,800

Blue watermelon tourmaline 6.815ct loose Sale price¥49,800

《Yurakucho Marui 2024112 takeout》Brazilian Paraiba Tourmaline 0.341ct loose stone (CuO:1.81%, MnO:1.96%) Nakahokan analysis report Sale price¥598,000

Unheated Brazilian Paraiba Tourmaline 0.081ct loose stone (CuO: 2.1%, MnO: 2.3%) Sale price¥98,000

Unheated Brazilian Paraiba Tourmaline 0.088ct loose stone (CuO: 1.9%, MnO: 2.3%) Sale price¥98,000

Unheated Brazilian Paraiba Tourmaline 0.059ct loose stone (CuO: 1.4%, MnO: 2.7%) Sale price¥63,800

Unheated Brazilian Paraiba Tourmaline 0.069ct loose stone (CuO: 1.6%, MnO: 2.6%) Sale price¥79,800

Unheated Brazilian Paraiba Tourmaline 0.065ct loose stone (CuO: 2.0%, MnO: 2.4%) Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.066ct loose stone (CuO: 1.5%, MnO: 2.2%) Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.063ct loose stone (CuO: 1.8%, MnO: 2.4%) Sale price¥75,800

Unheated Brazilian Paraiba Tourmaline 0.061ct loose stone (CuO: 1.7%, MnO: 2.2%) Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.055ct loose stone (CuO: 1.9%, MnO: 2.2%) Sale price¥59,800

Unheated Brazilian Paraiba Tourmaline 0.066ct loose stone (CuO: 1.7%, MnO: 2.4%) Sale price¥79,800

Unheated Brazilian Paraiba Tourmaline 0.056ct loose stone (CuO: 1.7%, MnO: 2.3%) Sale price¥59,800

Unheated Brazilian Paraiba Tourmaline 0.062ct loose stone (CuO: 1.7%, MnO: 2.5%) Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.058ct loose stone (CuO: 2.0%, MnO: 2.2%) Sale price¥59,800

Unheated Brazilian Paraiba Tourmaline 0.056ct loose stone (CuO: 2.1%, MnO: 2.2%) Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.057ct loose stone (CuO: 1.6%, MnO: 2.4%) Sale price¥69,800

Pink tourmaline 0.692ct loose stone Sale price¥18,800

Pink tourmaline 0.845ct loose stone Sale price¥14,800

1.455ct Mozambique Blue Tourmaline Loose Sale price¥29,800

Paraiba tourmaline from Brazil 0.057ct loose Sale price¥22,800

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.

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