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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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[On sale June 28th at 10 PM] Brazilian Paraiba Tourmaline Gacha with sorting results (CuO: 2.1%, MnO: 2.2%), usually ¥45,800, now with a chance to win one of 18 limited stones. (Multiple purchase discount available)

[On sale June 28th at 10 PM] Brazilian Paraiba Tourmaline Gacha with sorting results (CuO: 2.1%, MnO: 2.2%), usually ¥45,800, now with a chance to win one of 18 limited stones. (Multiple purchase discount available) Sale price¥9,800
[On Sale June 27, 10 PM JST] "Limited to 10 Stones" Rough Stone Gacha including Paraiba Tourmaline (CuO: 1.7%+ content) and Benitoite (with a bonus Oregon Sunstone) "Multiple Purchase Discount Available"

[On Sale June 27, 10 PM JST] "Limited to 10 Stones" Rough Stone Gacha including Paraiba Tourmaline (CuO: 1.7%+ content) and Benitoite (with a bonus Oregon Sunstone) "Multiple Purchase Discount Available" Sale price¥2,980
ウォーターメロントルマリン 14.780ctルース

[Lottery Sale 0428_2_07] Watermelon Tourmaline 14.780ct Loose Stone Sale price¥128,000
ブラジル産パライバトルマリン 0.090ctルース

Paraiba tourmaline from Brazil 0.090ct loose Sale price¥69,800
ブラジル産パライバトルマリン 0.056ctルース

Paraiba tourmaline from Brazil 0.056ct loose Sale price¥45,800
ブラジル産ブラジル産ブルートルマリンインクォーツ 10.466ctルース

[On sale July 5th, 10 PM JST] Brazilian Blue Tourmaline in Quartz 10.466ct Loose Stone Sale price¥39,800
ブラジル産ブラジル産ブルートルマリンインクォーツ 4.241ctルース

[On Sale July 6, 10 PM] Brazilian Blue Tourmaline in Quartz 4.241ct Loose Stone Sale price¥19,800
ピンクトルマリン 0.418ctルース

Brazilian Pink Tourmaline 0.418ct Loose Stone (Rouge Cut) Sale price¥8,800
ブラジル産パライバトルマリン 0.360ctルース GIA鑑別書

Brazilian Paraiba Tourmaline 0.360ct Loose GIA Sale price¥298,000
Brazilian Green Tourmaline 0.825ct Loose Stone

Brazilian Green Tourmaline 0.825ct Loose Stone Sale price¥9,800
Brazilian Green Tourmaline 0.376ct Loose Stone

Brazilian Green Tourmaline 0.376ct Loose Stone Sale price¥7,980
Brazilian Green Tourmaline 0.332ct Loose Stone

Brazilian Green Tourmaline 0.332ct Loose Stone Sale price¥7,980
非加熱ブラジル産パライバトルマリン 0.060ctルース（CuO:1.6%、MnO:2.3%）

Brazilian Paraiba Tourmaline 0.060ct Loose (CuO:1.6%, MnO:2.3%) Sale price¥42,800
非加熱ブラジル産パライバトルマリン 0.068ctルース（CuO:1.7%、MnO:2.4%）

Unheated Brazilian Paraiba Tourmaline 0.068ct loose stone (CuO: 1.7%, MnO: 2.4%) Sale price¥45,800
ナイジェリア産バイカラートルマリン 0.379ctルース

Nigerian bicolor tourmaline 0.379ct loose stone Sale price¥6,980
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
非加熱ブラジル産パライバトルマリン 0.052ctルース

Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:2.0%, MnO:2.2%) Sale price¥35,800
ピンクトルマリン 0.862ctルース

Brazilian Pink Tourmaline 0.862ct Loose Stone Sale price¥12,800
ブラジル産ブルートルマリン 0.196ctルース

Brazilian Blue Tourmaline 0.196ct Loose Sale price¥6,980
グリーントルマリン 2.218ctルース

Brazilian Green Tourmaline 2.218ct Loose Sale price¥25,800
バイカラートルマリン 1.326ctルース

Brazilian Bicolor Tourmaline 7.2mm/1.326ct Loose Stone Sale price¥18,800
グリーントルマリン 1.206ctルース

Namibian Green Tourmaline 7.0mm/1.206ct Loose Stone (Lagoon Tourmaline) Sale price¥59,800
Brazilian Paraiba Tourmaline 0.341ct loose stone (CuO:1.81%, MnO:1.96%) Nakahokan analysis report

Brazilian Paraiba Tourmaline 0.341ct loose stone (CuO:1.81%, MnO:1.96%) Nakahokan analysis report Sale price¥598,000
非加熱ブラジル産パライバトルマリン 0.081ctルース

Unheated Brazilian Paraiba Tourmaline 0.081ct loose stone (CuO: 2.1%, MnO: 2.3%) Sale price¥75,800
モザンビーク産エルバイトトルマリン 1.126ctルース

[Sale on June 19th at 10 PM] Mozambican Elbaite Tourmaline/Pink Tourmaline 1.126 ct Loose Stone (CuO: 0.2%, MnO: 2.4%) Sale price¥55,800
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》

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
{For beginners} Gem gacha💎 1 loose gemstone (Chrome tourmaline, Mahenge spinel, etc.) cut by Sri Lankan craftsman Sanjay {Multiple purchase discounts available}

{For beginners} Gem gacha💎 1 loose gemstone (Chrome tourmaline, Mahenge spinel, etc.) cut by Sri Lankan craftsman Sanjay {Multiple purchase discounts available} Sale price¥3,980
Limited to 20 stones: Brazilian Paraiba tourmaline (cabochon cut, approximately 2.2 mm) [Multiple purchase discounts available]

Limited to 20 stones: Brazilian Paraiba tourmaline (cabochon cut, approximately 2.2 mm) [Multiple purchase discounts available] Sale price¥9,800
[Option] Paraiba Tourmaline component analysis sorting issuance fee

[Option] Paraiba Tourmaline component analysis sorting issuance fee Sale price¥5,000
Zambian Canary Yellow Tourmaline (4.0mm/Round Cut) Loose Stone - Limited 5 Pieces (Multiple Purchase Discount Available)

Zambian Canary Yellow Tourmaline (4.0mm/Round Cut) Loose Stone - Limited 5 Pieces (Multiple Purchase Discount Available) Sale price¥6,980
[On sale May 4th at 10 PM] "Limited to 11 Gems" Rouge Cut & Heart Shape Gemstone Gacha for ¥18,800! 💎 Almandine Garnet, Pink Tourmaline, Scolecite, Sapphire. "Multiple Purchase Discount Available"

[On sale May 4th at 10 PM] "Limited to 11 Gems" Rouge Cut & Heart Shape Gemstone Gacha for ¥18,800! 💎 Almandine Garnet, Pink Tourmaline, Scolecite, Sapphire. "Multiple Purchase Discount Available" Sale price¥4,980
ブラジル産パライバトルマリンリング・ハーフエタニティリングセット（1.2mm）

Brazilian Paraiba Tourmaline Ring and Half Eternity Ring Set (1.2mm) Sale price¥198,000
宝石ガチャ💎バゲットカットのトルマリン1石💎4×2mm《複数購入割引有》

Gem gacha💎1 baguette cut tourmaline stone💎4×2mm《Discount available for multiple purchases》 Sale price¥1,980
[Option] Paraiba tourmaline analysis report attached identification certificate issuance fee

[Option] Paraiba tourmaline analysis report attached identification certificate issuance fee Sale price¥15,000
《Tucson New Arrival - Limited to 8 Stones》Zambian Canary Yellow Tourmaline Average 0.47ct《Bulk Purchase Discount Available》

《Tucson New Arrival - Limited to 8 Stones》Zambian Canary Yellow Tourmaline Average 0.47ct《Bulk Purchase Discount Available》 Sale price¥7,980
宝石ガチャ💎ハートシェイプのトルマリン1石💎4mm《複数購入割引有》

Gem Gacha💎Heart-shaped tourmaline 1 stone💎4mm《Multiple purchase discount available》 Sale price¥2,980
宝石ガチャ💎プリンセスカットのトルマリン1石💎 3mm《複数購入割引有》

Gem Gacha💎Princess cut tourmaline 1 stone💎 3mm《Multiple purchase discount available》 Sale price¥2,980
K18YGブラジル産パライバトルマリン0.047 リング

K18YG Brazilian Paraiba Tourmaline Ring (Flucche Setting, Pear Shape, Matte Finish) Sale price¥69,800
モザンビーク産ピンクトルマリン 2.944ctルース

[12550851] 2.944ct Mozambique pink tourmaline loose stone Sale price¥39,800
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%）

0.065ct loose Paraiba tourmaline from Brazil (CuO: 1.6%, MnO: 2.4%) Sale price¥49,800
ブラジル産ピンクトルマリン 0.968ctルース

Brazilian pink tourmaline 0.968ct loose stone Sale price¥18,800
ピンクトルマリン 0.558ctルース

Tanzanian pink tourmaline 0.558ct loose stone Sale price¥9,800
バイカラートルマリン 1.329ctルース

Bicolor tourmaline 1.329ct loose Sale price¥9,800
バイカラートルマリン 0.429ctルース

Bicolor tourmaline 0.429ct loose Sale price¥5,980
バイカラートルマリン 0.378ctルース

Bicolor Tourmaline 0.378ct Loose Stone (Hexagonal Cut) Sale price¥8,800
ピンクトルマリン 0.819ctルース

Pink tourmaline 0.819ct loose Sale price¥9,800
ピンクトルマリン 0.539ctルース

Pink tourmaline 0.539ct loose stone (heart shape) Sale price¥9,800

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.

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.