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raw stone

This is a list of products that contain rough stones and gemstones.

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オーストラリア産シェルオパール（貝オパール） 51.801ct原石

Australian Shell Opal (Shell Opal) 51.801ct Rough Stone Sale price¥25,800
ロシア産イエローダイヤモンド原石（ソーヤブル） 0.306ct原石

Russian Yellow Diamond Rough (Sawable) 0.306ct Rough (Trigon) Sale price¥98,000
日本式双晶水晶 5.771ct原石

Japanese style twin crystal 5.771ct raw stone Sale price¥19,800
日本式双晶水晶 4.727ct原石

Japanese style twin crystal 4.727ct raw stone Sale price¥15,800
日本式双晶水晶 4.715ct原石

Japanese style twin crystal 4.715ct raw stone Sale price¥15,800
日本式双晶水晶 3.472ct原石

Japanese style twin crystal 3.472ct raw stone Sale price¥9,800
【12551695掲載】ブラジル産パライバトルマリン 0.759ct原石

Brazilian Paraiba Tourmaline 0.759ct rough stone Sale price¥45,800
ロシア産ダイヤモンド原石（ソーヤブル） 0.094ct原石

Russian diamond rough (sawable) 0.094ct rough Sale price¥24,800
【12551694掲載】ブラジル産パライバトルマリン 0.821ct原石

Brazilian Paraiba Tourmaline 0.821ct rough stone Sale price¥39,800
【12551964掲載】コロンビア産エメラルド 1.435ct原石

Colombian emerald 1.435ct rough stone Sale price¥18,800
【12551984掲載】バイカラータンザナイト 2.750ct原石

Tanzanian bicolor tanzanite rough stone 2.750ct Sale price¥9,800
オーストラリア産シェルオパール（貝オパール） 73.321ct原石

Australian Shell Opal (Shell Opal) 73.321ct Rough Stone Sale price¥49,800
タンザニア産パープルゾイサイト 1.160ct原石

Tanzania Purple Zoisite Rough Stone 1.160ct Sale price¥8,800
スリランカ産グラスボディ（サファイアクリスタル） 7.983ct原石

Sri Lankan glass body (sapphire crystal) 7.983ct rough stone Sale price¥29,800
スリランカ産グラスボディ（サファイアクリスタル） 10.140ct原石

Sri Lankan glass body (sapphire crystal) 10.140ct rough stone Sale price¥29,800
タンザニア産パープルゾイサイト 3.324ct原石

3.324ct Tanzanian Purple Zoisite Rough Stone Sale price¥6,980
タンザニア産バイカラーピンクゾイサイト 4.037ct原石

Tanzania Bicolor Pink Zoisite 4.037ct Rough Stone Sale price¥12,800
タンザニア産バイカラーピンクゾイサイト 5.041ct原石

Tanzania Bicolor Pink Zoisite 5.041ct Rough Stone Sale price¥12,800
タンザニア産バイカラーゾイサイト 1.608ct原石

Tanzania Bicolor Zoisite 1.608ct Rough Stone Sale price¥12,800
タンザニア産パープルゾイサイト 2.590ct原石

Tanzania Purple Zoisite Rough Stone 2.590ct Sale price¥9,800
エチオピア産オパール 167.191ct原石

Ethiopian Opal 167.191ct Rough Stone Sale price¥39,800
タンザニア産パープルゾイサイト 0.863ct原石

Tanzania Purple Zoisite 0.863ct Rough Stone Sale price¥8,800
ダイヤモンド 0.534ct原石

Diamond 0.534ct ​​rough stone Sale price¥9,800
ユークレース 3.417ct原石

Colombian Euclase 3.417ct rough stone Sale price¥12,800
タンザニア産パープルゾイサイト 3.758ct原石

Purple zoisite 3.758ct rough stone from Tanzania Sale price¥29,800
Sold out 1 Brazilian Euclase rough stone (discount available for multiple purchases)

1 Brazilian Euclase rough stone (discount available for multiple purchases)

Sold out アイオライト原石・ルース 2石セット - カラッツSTORE

Iolite rough stone/loose 2 stone set《Multiple purchase discount available》

Sold out Ametrine 1 stone (approximately 60~70ct)《Discount available for multiple purchases》

Ametrine 1 stone (approximately 60~70ct)《Discount available for multiple purchases》

Sold out Ametrine 1 stone (approximately 40~50ct)

Ametrine 1 stone (approximately 40~50ct)

Sold out Diamond rough (makeable) 0.353ct rough

Diamond rough (makeable) 0.353ct rough
Sold out Diamond rough (makeable) 0.279ct rough

Diamond rough (makeable) 0.279ct rough
Sold out Limited to 12 stones! Gemstone Gacha including Brazilian Paraiba Tourmaline rough stone 💎 1 rough stone (Multiple purchase discounts available)

Limited to 12 stones! Gemstone Gacha including Brazilian Paraiba Tourmaline rough stone 💎 1 rough stone (Multiple purchase discounts available)
Sold out 南アフリカ産ダイヤモンド原石（ソーヤブル） 0.083ct原石

South African diamond rough (sawable) 0.083ct rough

Sold out Tanzanite rough and loose stone set of 2 (average 3.3ct, special cut) from Tanzania {Multiple purchase discounts available}

Tanzanite rough and loose stone set of 2 (average 3.3ct, special cut) from Tanzania {Multiple purchase discounts available}

Sold out Tanzanite rough and loose stone set of 2 (average 3ct, cushion cut) from Tanzania {Multiple purchase discounts available}

Tanzanite rough and loose stone set of 2 (average 3ct, cushion cut) from Tanzania {Multiple purchase discounts available}

Sold out Limited to 6 stones: 1 topaz rough stone (November birthstone) Multiple purchase discounts available

Limited to 6 stones: 1 topaz rough stone (November birthstone) Multiple purchase discounts available
Sold out グリーンランド産タグトゥパイト 0.998ct原石

[On sale 6/7 10 PM JST] Greenland Tugtupite Rough 0.998 ct with Japanese and German certification
Sold out 高知県産血赤珊瑚 21.156ct原石

[On sale June 3rd, 10 PM JST] Kochi Prefecture-produced oxblood coral, 21.156 ct raw coral
coming soon タンザニア産アレキサンドライト 0.843ct原石

Rough Tanzanian Alexandrite 0.843ct Sale price¥29,800
Sold out 【12562829掲載】コロンビア産パイライト付ユークレース 23.430ct原石

Euclase with pyrite from Colombia 23.430ct Rough, Hōki Kyōso
Sold out カナダ産ダイヤモンド原石（ソーヤブル） 0.328ct原石（トライゴン有り）

Canadian raw diamond (sawable) 0.328ct raw (with trigons)
Sold out インド産カバンサイト 240.461ct原石

Indian Cavansite 240.461ct rough stone
Sold out オーストラリア産シェルオパール（貝オパール） 96.177ct原石

Australian shell opal (shell opal) 96.177ct rough stone
Sold out Colombian trapiche emerald (reverse trapiche) 3.0mm/0.107ct rough stone (faceted cut)

Colombian trapiche emerald (reverse trapiche) 3.0mm/0.107ct rough stone (faceted cut)
Sold out Colombian emerald 10.940ct rough stone

Colombian emerald 10.940ct rough stone
Sold out Colombian emerald rough stone 18.900ct (with pyrite)

Colombian emerald rough stone 18.900ct (with pyrite)
Sold out Bicolor tourmaline 3.242ct rough stone from Afghanistan

Bicolor tourmaline 3.242ct rough stone from Afghanistan
Sold out ザンビア産アメジスト 39.112ct原石

Amethyst 39.112ct raw stone from Zambia

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.