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raw stone

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

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ダイヤモンド 0.430ct原石

South African diamond rough stone 0.430ct Sale price¥9,800
ダイヤモンド 0.330ct原石

South African diamond rough stone 0.330ct Sale price¥5,980
ダイヤモンド 0.210ct原石

South African diamond rough stone 0.210ct Sale price¥8,800
南アフリカ産ダイヤモンド原石（ソーヤブル） 0.107ct原石

South African Diamond Rough (Sawable) 0.107ct Rough Trigon Sale price¥42,800
南アフリカ産ダイヤモンド原石（ソーヤブル） 0.096ct原石

South African diamond rough (sawable) 0.096ct rough (with trigon) Sale price¥39,800
南アフリカ産ダイヤモンド原石（ソーヤブル） 0.112ct原石

South African diamond rough (sawable) 0.112ct rough Sale price¥44,800
南アフリカ産ダイヤモンド原石（ソーヤブル） 0.091ct原石（トライゴン）

South African diamond rough (sawable) 0.091ct rough (trigon) Sale price¥35,800
タンザニア産バイカラータンザナイト 2.264ct原石・ルース2石セット

Tanzania Bicolor Zoisite 2.264ct Rough Stone and Loose Stone Set of 2 Sale price¥8,800
コロンビア産トラピッチェエメラルド 0.923ct原石

Colombian Trapiche Emerald 0.923ct Rough Stone Sale price¥45,800
エチオピア産オパール 41.967ct原石

Ethiopian Opal 41.967ct Rough Stone Sale price¥33,800
エチオピア産オパール 15.845ct原石

Ethiopian Opal 15.845ct Rough Stone Sale price¥15,800
エチオピア産オパール 14.344ct原石

Ethiopian Opal 14.344ct Rough Stone Sale price¥14,800
【12543382掲載】バイカラータンザナイト 1.644ct原石

Tanzanian bicolor tanzanite 1.644ct rough and loose stone set of 2 Sale price¥8,800
バイカラータンザナイト 3.018ct原石

Tanzanian bicolor tanzanite 3.018ct rough and loose stone set of 2 Sale price¥6,980
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
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
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
ダイヤモンド 0.534ct原石

Diamond 0.534ct ​​rough stone Sale price¥9,800
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 [Jeweler's Tools] 3 black light loose pieces (ruby, red spinel rough, oil-in-quartz) with rechargeable battery

[Jeweler's Tools] 3 black light loose pieces (ruby, red spinel rough, oil-in-quartz) with rechargeable battery

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 タンザナイト原石・ルース2石セット（シュガーローフカット）

Tanzanite raw stone/loose 2 stone set (sugar loaf cut)《Multiple purchase discount available》

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 日本式双晶水晶 4.727ct原石

Japanese style twin crystal 4.727ct raw stone
Sold out 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
Sold out ブラジル産パライバトルマリン 8.863ct原石

[9/5 10 PM Sale] Brazilian Paraiba Tourmaline 8.863ct Rough Stone
Sold out ブラジル産パライバトルマリン 8.135ct原石

[Available 9/5 at 10:00 PM] 8.135ct Raw Brazilian Paraiba Tourmaline
Sold out 【12553261掲載】ロシア産ダイヤモンド原石（ソーヤブル） 0.094ctルース

Russian diamond rough (sawable) 0.094ct rough
Sold out ユークレース 3.417ct原石

Colombian Euclase 3.417ct rough stone
Sold out 南アフリカ産ダイヤモンド原石（ソーヤブル） 0.280ct原石

【#202607 Akihabara Pop-up, Currently Out of Stock】【12563269 Posted】Rough Diamond (Sawable) from South Africa 0.280ct
Sold out ロシア産ダイヤモンド原石（ソーヤブル） 0.148ct原石

Rough diamond (sawable) from Russia, 0.148ct rough diamond (trigon)
Sold out ロシア産ダイヤモンド原石（ソーヤブル） 0.098ct原石

Rough Russian Diamonds (Sawables) 0.098ct Rough Diamonds (Trigons)
Sold out グリーンランド産タグトゥパイト 0.998ct原石

Tugtupite from Greenland, 0.998 ct Rough, Japanese-German Appraisal
Sold out 高知県産血赤珊瑚 6.520ct原石

Uncut Kochi Prefecture Blood Coral 6.520ct
Sold out 高知県産血赤珊瑚 21.156ct原石

Kochi Prefecture-sourced deep red coral, 21.156ct raw branch (rough stone)
Sold out パープルゾイサイト 2.617ct原石

Purple Zoisite 2.617ct rough stone

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.