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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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《残り1石》ミニカイトカット1石ルース（パライバトルマリン2石含む、グリーンベリル、ルビー、ペリドットなど）《複数購入割引有》

《残り1石》ミニカイトカット1石ルース（パライバトルマリン2石含む、グリーンベリル、ルビー、ペリドットなど）《複数購入割引有》 Sale price¥2,980
[On sale from 10/10 at 10 PM] [Limited to 10 stones] Brazilian Bicolor Tourmaline Loose Stone (Baguette Cut) [Multiple purchase discounts available]

[On sale from 10/10 at 10 PM] [Limited to 10 stones] Brazilian Bicolor Tourmaline Loose Stone (Baguette Cut) [Multiple purchase discounts available] Sale price¥3,980
[Available at 10 PM on September 28th] [Limited to 16 stones] Loose tourmaline gacha featuring special cuts including Sakura in cut (from Congo) and Dandelion cut (from Brazil) [Multiple purchase discounts available]

[Available at 10 PM on September 28th] [Limited to 16 stones] Loose tourmaline gacha featuring special cuts including Sakura in cut (from Congo) and Dandelion cut (from Brazil) [Multiple purchase discounts available] Sale price¥4,980
モザンビーク産パライバトルマリン 1.309ctルース（酸化鉄インクルージョン含む）

【10/13 22時販売】モザンビーク産パライバトルマリン 1.309ctルース（酸化鉄インクルージョン含む） Sale price¥98,000
ブラジル産パライバトルマリン 0.052ctルース

[10/12 22:00 Sale] Brazilian Paraiba Tourmaline 0.052ct Loose Stone Sale price¥29,800
[On Sale 10/11 at 10 PM] Brazilian Paraiba Tourmaline 0.170ct Loose Stone (CuO: 2.1%, MnO: 1.1%)

[On Sale 10/11 at 10 PM] Brazilian Paraiba Tourmaline 0.170ct Loose Stone (CuO: 2.1%, MnO: 1.1%) Sale price¥198,000
非加熱ブラジル産パライバトルマリン 0.073ctルース

[12552640] Unheated Brazilian Paraiba Tourmaline 0.073ct loose stone Sale price¥69,800
非加熱ブラジル産パライバトルマリン 0.063ctルース

[12552618] Unheated Brazilian Paraiba Tourmaline 0.063ct loose stone Sale price¥65,800
coming soon [12552081] Unheated Brazilian Paraiba Tourmaline 0.025ct Loose Stone

[12552081] Unheated Brazilian Paraiba Tourmaline 0.025ct Loose Stone Sale price¥29,800
coming soon [12552075] Unheated Brazilian Paraiba Tourmaline 0.037ct loose stone

[12552075] Unheated Brazilian Paraiba Tourmaline 0.037ct loose stone Sale price¥45,800
coming soon [12552074] Unheated Brazilian Paraiba Tourmaline 0.042ct Loose Stone

[12552074] Unheated Brazilian Paraiba Tourmaline 0.042ct Loose Stone Sale price¥59,800
イエロートルマリン 0.469ctルース

[Posted in 12548907] Yellow tourmaline 0.469ct loose Sale price¥8,800
グリーントルマリン 0.869ctルース

[Posted in 12547848] Green tourmaline 0.869ct loose Sale price¥15,800
バイカラートルマリン 0.398ctルース

[12547847 published] Bicolor tourmaline 0.398ct loose Sale price¥8,800
ピンクトルマリン 0.605ctルース

[12547844 published] Pink tourmaline 0.605ct loose Sale price¥8,800
グリーンゾイサイト 3.617ctルース

Brazilian Paraiba tourmaline 0.370ct loose (CuO:1.0%, MnO:1.2%) Sale price¥59,800
モザンビーク産パライバトルマリン 0.266ctルース

Paraiba tourmaline from Mozambique 0.266ct loose Sale price¥25,800
バイカラートルマリン 0.418ctルース

Bicolor tourmaline 0.418ct loose Sale price¥3,980
[On Sale at 10 PM on October 8th] Brazilian Pink Tourmaline 0.385ct Loose Stone

[On Sale at 10 PM on October 8th] Brazilian Pink Tourmaline 0.385ct Loose Stone Sale price¥7,980
[On Sale at 10 PM on October 6th] [Rouge Cut] Brazilian Bicolor Tourmaline 0.578ct Loose Stone

[On Sale at 10 PM on October 6th] [Rouge Cut] Brazilian Bicolor Tourmaline 0.578ct Loose Stone Sale price¥9,800
[On sale from 10/10 at 10pm] Illusion Tourmaline (Iridescent Tourmaline) 0.622ct Loose Stone

[On sale from 10/10 at 10pm] Illusion Tourmaline (Iridescent Tourmaline) 0.622ct Loose Stone Sale price¥19,800
ブラジル産パライバトルマリン 0.275ctルース（CuO:1.5％.MnO:2.3％）

Brazilian Paraiba tourmaline 0.275ct loose (CuO:1.5%.MnO:2.3%) Sale price¥358,000
ブラジル産パライバトルマリン 0.154ctルース

Paraiba tourmaline from Brazil 0.154ct loose (CuO:1.1wt%, MnO:1.4wt%) Sale price¥128,000
ブラジル産パーティカラーパライバトルマリン 0.26ctルース GIA

Brazilian particolor Paraiba tourmaline 0.26ct loose GIA Sale price¥598,000
非加熱ブラジル産パライバトルマリン 0.050ctルース GIA

Unheated Paraiba tourmaline from Brazil 0.050ct loose GIA (color change Paraiba tourmaline) Sale price¥148,000
ブラジル産パライバトルマリン 0.226ctルース（CuO:0.7%、MnO:2.5%）

Brazilian Paraiba tourmaline 0.226ct loose (CuO:0.7%, MnO:2.5%) Sale price¥39,800
バイカラートルマリン 0.591ctルース（ローズカット）

Bicolor tourmaline 0.591ct loose (rose cut) Sale price¥8,980
バイカラートルマリン 0.435ctルース（ローズカット）

Bicolor tourmaline 0.435ct loose (rose cut) Sale price¥5,980
【サンジェ氏】ピンクトルマリン 0.482ctルース

Pink tourmaline 0.482ct loose stone Sale price¥5,980
バイカラートルマリン 0.258ctルース

[On Sale at 10 PM on September 22nd] Brazilian Bicolor Tourmaline 0.258ct Loose Stone Sale price¥8,800
非加熱ブラジル産パライバトルマリン 0.039ctルース

[On Sale at 10 PM on September 22nd] Unheated Brazilian Paraiba Tourmaline 0.039ct Loose Stone (CuO: 2.0%, MnO: 2.3%) Sale price¥59,800
非加熱ブラジル産パライバトルマリン 0.082ctルース

Unheated Brazilian Paraiba tourmaline 0.082ct loose stone (CuO: 1.6%, MnO: 2.3%) Sale price¥79,800
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
[Limited to 24 stones] Tourmaline Gacha💎Indigolite tourmaline, clover cut, and other single loose stones {Multiple purchase discounts available}

[Limited to 24 stones] Tourmaline Gacha💎Indigolite tourmaline, clover cut, and other single loose stones {Multiple purchase discounts available} Sale price¥2,580
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
{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
[Option] Paraiba Tourmaline component analysis sorting issuance fee

[Option] Paraiba Tourmaline component analysis sorting issuance fee Sale price¥5,000
《Limited to 7 stones》1 stone tourmaline in quartz from Sri Lanka loose (8-9mm, octagonal cut)《Multiple purchase discount available》

《Limited to 7 stones》1 stone tourmaline in quartz from Sri Lanka loose (8-9mm, octagonal cut)《Multiple purchase discount available》 Sale price¥3,980
宝石ガチャ💎クッションカットのトルマリン1石💎 4mm《複数購入割引有》

Gem Gacha💎1 cushion cut tourmaline stone💎 4mm《Multiple purchase discount available》 Sale price¥2,980

Additional charge: K18WG (base metal) + 10,000 yen Sale price¥18,800
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¥188,000
[Option] Paraiba tourmaline analysis report attached identification certificate issuance fee

[Option] Paraiba tourmaline analysis report attached identification certificate issuance fee Sale price¥15,000
ブラジル産パライバトルマリン 0.205ctルース（CuO:0.8%、MnO:3.1%）

Paraiba tourmaline from Brazil 0.205ct loose (CuO:0.8%, MnO:3.1%) Sale price¥39,800
ブラジル産パライバトルマリン 0.167ctルース（CuO:1.6%、MnO:3.0%）

Paraiba tourmaline from Brazil 0.167ct loose (CuO:1.6%, MnO:3.0%) Sale price¥29,800
ブラジル産パライバトルマリン 0.086ctルース（CuO:1.5%、MnO:2.3%）

Paraiba tourmaline from Brazil 0.086ct loose (CuO:1.5%, MnO:2.3%) Sale price¥18,800
ブラジル産パライバトルマリン 0.226ctルース（CuO:0.7%、MnO:3.6%）

Paraiba tourmaline from Brazil 0.226ct loose (CuO:0.7%, MnO:3.6%) Sale price¥39,800
ブラジル産パライバトルマリン 0.204ctルース

Paraiba tourmaline from Brazil 0.204ct loose Sale price¥29,800

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.