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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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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
Limited to 20 Stones: Indicolite Tourmaline Gacha with 5 Stones & Certificate – 1 Loose Stone (Multiple Purchase Discount Available)

Limited to 20 Stones: Indicolite Tourmaline Gacha with 5 Stones & Certificate – 1 Loose Stone (Multiple Purchase Discount Available) Sale price¥3,980
【10/3 22:00 Release】《15 stones limited》Illusion Tourmaline Gacha Loose Stone (3.0ct average) 《Multiple purchase discount available》

【10/3 22:00 Release】《15 stones limited》Illusion Tourmaline Gacha Loose Stone (3.0ct average) 《Multiple purchase discount available》 Sale price¥3,980
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 component analysis sorting issuance fee

[Option] Paraiba Tourmaline component analysis sorting issuance fee Sale price¥5,000
《Limited to 11 Stones》Rouge Cut & Heart Shaped Gemstone Gacha Usually ¥18,800💎 Almandine Garnet, Pink Tourmaline, Scolite, Sapphire《Multiple Purchase Discount Available》

《Limited to 11 Stones》Rouge Cut & Heart Shaped Gemstone Gacha Usually ¥18,800💎 Almandine Garnet, Pink Tourmaline, Scolite, Sapphire《Multiple Purchase Discount Available》 Sale price¥4,980
[Available 9/20 at 10 PM] Limited to 7 pieces: Brazilian Batalha Paraiba Tourmaline & Elbaite rough stone gacha, featuring bicolor Paraiba (CuO: 2.7%, MnO: 2.0%) usually priced at 25,800 yen (multi-purchase discounts available).

[Available 9/20 at 10 PM] Limited to 7 pieces: Brazilian Batalha Paraiba Tourmaline & Elbaite rough stone gacha, featuring bicolor Paraiba (CuO: 2.7%, MnO: 2.0%) usually priced at 25,800 yen (multi-purchase discounts available). Sale price¥6,980
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
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
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
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
[Option] Paraiba tourmaline analysis report attached identification certificate issuance fee

[Option] Paraiba tourmaline analysis report attached identification certificate issuance fee Sale price¥15,000
Brazilian Paraiba Tourmaline (Batalha Mine) Gacha 💎 Usually ¥45,800 With sorting, includes unheated. 《Multiple purchase discount available》

Brazilian Paraiba Tourmaline (Batalha Mine) Gacha 💎 Usually ¥45,800 With sorting, includes unheated. 《Multiple purchase discount available》 Sale price¥15,800
《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
《New Arrivals from Tucson・Limited to 9 Stones》Canary Yellow Tourmaline from Zambia, average 0.18ct《Multi-purchase discount available》

《New Arrivals from Tucson・Limited to 9 Stones》Canary Yellow Tourmaline from Zambia, average 0.18ct《Multi-purchase discount available》 Sale price¥3,980
ブラジル産トルマリンキャッツアイ 3.414ctルース

【11/11 22時販売】ブラジル産トルマリンキャッツアイ 3.414ctルース Sale price¥51,800
Pt900 ブラジル産パライバトルマリンCuO:2.7%、MnO:1.0% 0.09ct ダイヤモンド0.80ctペンダントトップ（ネックレストップ）鑑別書

[Deadline: Sat, Oct 3, 10:00 AM: Lottery Sale ①_11] Pt900 Brazilian Paraiba Tourmaline (CuO: 2.7%, MnO: 1.0%) 0.09ct & Diamond 0.80ct Pendant Top (Necklace Top) with Identification Report Sale price¥168,000
ブラジル産パーティカラートルマリン 11.847ctルース

[Lottery Sale #2_202608_13] Brazilian Tetracholor Tourmaline 11.847ct Loose Stone with Certificate Sale price¥258,000
バイカラートルマリン 0.914ルース

Brazilian bicolor tourmaline 0.914ct loose stone Sale price¥12,800
ピンクトルマリン 0.543ルース

Madagascar Pink Tourmaline 0.543ct Loose Stone Sale price¥12,800
ブラジル産インディゴライトトルマリン 1.027ctルース

[Lottery Sale_07][For Winners Only][Item No. 12564402] Brazilian Indicolite Tourmaline 1.027ct Loose Stone with Appraisal Report Sale price¥98,000
ブラジル産パライバトルマリン 3.2mm/0.152ctルース（CuO:1.1% MnO:0.6%）

[Deadline: Mon, 9/14, 10:00 AM: Lottery Sale_06] Brazilian Paraiba Tourmaline 3.2mm/0.152ct Loose Stone (CuO: 1.1% MnO: 0.6%) Sale price¥158,000
ブラジル産ルベライト 3.844ctルース

Brazilian Rubellite (Red Tourmaline) 3.844ct Loose Stone Sale price¥128,000
グリーントルマリン 0.703ctルース

Brazilian Green Tourmaline 0.703ct Loose Stone Sale price¥15,800
グリーントルマリン 0.764ctルース

Brazilian Green Tourmaline 0.764ct Loose Stone Sale price¥8,800
ブラジル産バイカラートルマリンキャッツアイ 22.056ctルース

Brazilian bicolor tourmaline cat's eye 22.056ct loose stone Sale price¥188,000
バイカラートルマリン 3.429ctルース

Congo Bicolor Tourmaline 3.429ct Loose Sale price¥98,000
ブラジル産パライバトルマリンインクォーツ 2.827ctルース

Brazilian Paraiba Tourmaline in Quartz 2.827ct loose stone Sale price¥45,800
ブラジル産パライバトルマリンインクォーツ 0.284ctルース

Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.284ct Loose Stone Sale price¥19,800
ブラジル産パライバトルマリンインクォーツ 1.146ctルース

Brazilian Paraiba Tourmaline in Quartz 1.146ct Loose Stone Sale price¥25,800
ブラジル産パライバトルマリンインクォーツ 1.287ctルース

Brazilian Paraiba Tourmaline in Quartz 8.0mm/1.287ct Loose Stone Sale price¥25,800
Elbaite tourmaline from Mozambique 2.082ct loose stone (CuO: 0.1%, MnO: 1.4%)

Elbaite tourmaline from Mozambique 2.082ct loose stone (CuO: 0.1%, MnO: 1.4%) Sale price¥55,800
非加熱ブラジル産パライバトルマリン 0.068ctルース（CuO:1.4%、MnO:2.3%）

Unheated Brazilian Paraiba Tourmaline 0.068ct loose stone (CuO: 1.4%, MnO: 2.3%) Sale price¥45,800
バイカラートルマリン 0.845ctルース

Brazilian bicolor tourmaline 0.845ct loose stone Sale price¥12,800
タンザニア産クロムトルマリン 0.980ctルース

【11/7 22時販売】タンザニア産クロムトルマリン 0.980ctルース Sale price¥25,800
タンザニア産クロムトルマリン 0.543ctルース

【11/3 22時販売】タンザニア産クロムトルマリン 0.543ctルース Sale price¥15,800
ブラジル産トルマリンキャッツアイ 3.977ctルース

【11/3 22時販売】ブラジル産トルマリンキャッツアイ 3.977ctルース Sale price¥59,800
ブラジル産トルマリンキャッツアイ 3.375ctルース

【11/3 22時販売】ブラジル産トルマリンキャッツアイ 3.375ctルース Sale price¥52,800
トルマリン 0.858ctルース

Brazilian Tourmaline 0.858ct Loose Stone Sale price¥15,800
ピンクトルマリン 0.844ctルース

Brazilian pink tourmaline 0.844ct loose stone Sale price¥18,800
ブラジル産グリーントルマリン 1.059ctルース

Brazilian Green Tourmaline 1.059ct Loose Stone Sale price¥15,800
ブラジル産グリーントルマリン 0.350ctルース

Brazilian Green Tourmaline 0.350ct Loose Sale price¥8,800
Brazilian Indigolite Tourmaline 6.052ct Loose Stone JTL

Brazilian Indigolite Tourmaline 6.052ct Loose Stone JTL Sale price¥158,000
Brazilian Green Tourmaline 1.193ct Loose Stone

Brazilian Green Tourmaline 1.193ct Loose Stone Sale price¥39,800
ブラジル産グリーントルマリン 11.453ctルース

Brazilian Green Tourmaline 11.453ct Loose Stone Sale price¥158,000

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.