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Sold out メキシコ産カンテラオパール 2.096ctルース

Mexican Cantera Opal 2.096ct Loose Stone
Sold out 中国・湖南省シンシャ（辰砂・シナバー） 0.935ctルース

[12562802 posted] Chinese Cinnabar (Shansha) 0.935 ct Loose
Sold out タンザニア産ホットピンクスピネル 0.204ctルース

Hot Pink Spinel from Tanzania, 0.204 ct, Loose Stone with Identification Report
coming soon 【12562723掲載】ブラジル産ガーデンクォーツ 53.593ctルース

[Published 12562723] Brazilian Garden Quartz 53.593ct Loose Stone Sale price¥45,800
coming soon [Lottery Sale 0531_14] Greenland Sapphire 1.258 ct Loose Stone with ChuBo & Analysis Data

[Lottery Sale 0531_14] Greenland Sapphire 1.258 ct Loose Stone with ChuBo & Analysis Data Sale price¥59,800
Sold out ブラジル産インディゴライトトルマリン 0.105ctルース

Brazil Indicolite Tourmaline 0.105ct Loose Stone with Gemstone Report
Sold out メキシコ産ウォーターオパール 1.018ctルース

[Published 12562689] Mexican Water Opal 1.018ct Loose Stone
Sold out ドイツ産アウイナイト 0.122ctルース

German Hauyne 0.122ct Loose Gemstone
Sold out 【12561981掲載】アメリカ産オレゴンサンストーン 1.893ctルース

Oregon Sunstone from the USA, 8.1mm/1.893ct, loose
Sold out 【Sale starts 4/ at 10 PM JST】《Limited to 15 pieces》Tucson Gem Gacha 💎 Benitoite, Italian Leucite, Pakistani Lazulite, etc. 《Multi-item discount available》

【Sale starts 4/ at 10 PM JST】《Limited to 15 pieces》Tucson Gem Gacha 💎 Benitoite, Italian Leucite, Pakistani Lazulite, etc. 《Multi-item discount available》
Sold out 【4/20 22時販売】シーライト 2.737ctルース - カラッツSTORE

Sealyite from California, USA, 2.737ct loose stone, with identification certificate
Sold out 【22602555掲載】K18 ターコイズ リング

K18 Turquoise Ring
Sold out K18 Red Coral from Kochi Prefecture (0.41ct), Diamond (0.03ct) Ring

K18 Red Coral from Kochi Prefecture (0.41ct), Diamond (0.03ct) Ring
Sold out 【22602551掲載】K18 血赤珊瑚 0.56ct リング

K18 Blood Coral from Kochi Prefecture (0.56ct), Diamond (0.08ct) Ring
Sold out 【32501804掲載】ダイヤモンド 0.185ctルース(I, SI1)

Diamond 0.185ct Loose Stone (I, SI1, Ashoka Cut)
Sold out Brazilian alexandrite 0.109ct loose

Brazilian alexandrite 0.109ct loose
Sold out Brazilian Alexandrite 2.7mm/0.105ct Loose Stone

Brazilian Alexandrite 2.7mm/0.105ct Loose Stone
Sold out 《Limited to 12 Stones》Iolite Gacha including Konpeito-cut Golden Iolite, normally 27,800 yen (with a bonus cut by Mr. Sanje)《Multiple Purchase Discount Available》

《Limited to 12 Stones》Iolite Gacha including Konpeito-cut Golden Iolite, normally 27,800 yen (with a bonus cut by Mr. Sanje)《Multiple Purchase Discount Available》
Sold out 【12561280掲載】ブラジル産レインボースキャポライト 0.393ctルース

Brazilian Rainbow Scapolite 0.393ct Loose Stone
Sold out メキシコ産オパール 0.244ctルース

Mexican Fire Opal 0.244ct Loose Stone (Contraluz Opal)
Sold out スリランカ産ブルーサファイア 0.826ctルース

Sri Lankan Blue Sapphire 5.5mm/0.826ct Loose Stone
Sold out Loose 0.264ct Sri Lankan Blue Sapphire

Loose 0.264ct Sri Lankan Blue Sapphire
Sold out Tanzanian Rhodolite Garnet 0.410 ct Loose Stone

Tanzanian Rhodolite Garnet 0.410 ct Loose Stone
Sold out 0.133ct Loose Blue Sapphire from Madagascar

0.133ct Loose Blue Sapphire from Madagascar
coming soon 【12555695掲載】ブラジル産パライバトルマリンインクォーツ 0.313ctルース

Brazilian Paraiba Tourmaline In Quartz 0.50mm/.313ct Loose Sale price¥15,800
Sold out 《New Tucson Arrivals・Limited to 13 Stones》Pakistani Lazurite (Azure Stone) Loose Stone《Multiple Purchase Discount Available》

《New Tucson Arrivals・Limited to 13 Stones》Pakistani Lazurite (Azure Stone) Loose Stone《Multiple Purchase Discount Available》
Sold out Brazilian Paraiba Tourmaline (cabochon cut, approximately 2.2mm) 1 loose stone (multiple purchase discounts available)

Brazilian Paraiba Tourmaline (cabochon cut, approximately 2.2mm) 1 loose stone (multiple purchase discounts available)
Sold out ジンバブエ産バイカラーユークレース 0.132ctルース

Zimbabwean Bicolor Euclase 0.132ct Loose Stone
Sold out ジンバブエ産バイカラーユークレース 0.102ctルース

Bicolored Euclase from Zimbabwe 2.9mm/0.102ct Loose
Sold out ジンバブエ産ユークレース 0.120ctルース

Zimbabwean Euclase 0.120ct Loose
Sold out Zimbabwe Euclase 0.102ct Loose

Zimbabwe Euclase 0.102ct Loose
Sold out Euclase from Zimbabwe 0.083ct Loose

Euclase from Zimbabwe 0.083ct Loose
Sold out Brazilian Alexandrite Cat's Eye 2.6mm/0.111ct Loose Stone

Brazilian Alexandrite Cat's Eye 2.6mm/0.111ct Loose Stone
Sold out Brazilian Alexandrite Cat's Eye 0.097ct Loose Stone

Brazilian Alexandrite Cat's Eye 0.097ct Loose Stone
Sold out 0.163 ct loose grandidierite from Madagascar

0.163 ct loose grandidierite from Madagascar
Sold out Madagascar Grandidierite 0.112ct Loose Stone

Madagascar Grandidierite 0.112ct Loose Stone
Sold out 【12562650掲載】ペルー産バイカラーブルーオパール 4.862ctルース

Peruvian Bicolor Blue Opal 4.862ct Loose
Sold out ペルー産バイカラーブルーオパール 4.067ctルース

Peruvian Bicolor Blue Opal 4.067ct Loose Gemstone
Sold out [Sakura Shape] Synthetic Sapphire 3.285ct Loose Stone

[Sakura Shape] Synthetic Sapphire 3.285ct Loose Stone
Sold out 【Sakura Shape】Oregon Sunstone 1.174ct Loose

【Sakura Shape】Oregon Sunstone 1.174ct Loose
Sold out 【ダンデライオンカット】モンゴル産カラーチェンジアンデシン 6.0mm/0.774ctルース

[Dandelion Cut] Mongolian Color-Change Andesine 6.0mm/0.774ct Loose Gemstone
Sold out Pt950 アイスブルーダイヤモンド リング

Pt950 Ice Blue Diamond Ring
Sold out マダガスカル産アンデシン・ラブラドライト（通称名 レインボームーンストーン） 0.463ctルース

0.463 ct Loose Madagascar Andesine-Labradorite (Common Name: Rainbow Moonstone)
Sold out マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.089ctルース

Bekily Blue Garnet from Madagascar (color change garnet) 0.089ct loose
Sold out インド産アイオライトサンストーン 0.472ctルース

Iolite Sunstone from India 0.472ct Loose Gemstone
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 グレーダイヤモンド 0.107ctルース(FANCY GRAY, I-1)

Gray Diamond 0.107ct Loose (FANCY GRAY, I-1)
Sold out 【ゆきんこカット】合成サファイア 2.220ctルース（合成ブルーサファイア）

[Yukinko Cut] Synthetic Sapphire 2.220ct Loose (Synthetic Blue Sapphire)

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.