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《Limited Edition - Pop-up Event Special》Gem Gacha 💎 Win gems such as red sapphire with a certificate, chameleon diamond, imperial topaz, alexandrite, and gems polished by Mr. Sanje. 《Multiple Purchase Discount Available》

《Limited Edition - Pop-up Event Special》Gem Gacha 💎 Win gems such as red sapphire with a certificate, chameleon diamond, imperial topaz, alexandrite, and gems polished by Mr. Sanje. 《Multiple Purchase Discount Available》 Sale price¥2,980
[On Sale June 6th, 10 PM JST] 11-Piece Limited Edition Madagascar Sapphire Gacha (Including bi-color and silky varieties, 3.5-5.4mm) [Multi-buy discount available]

[On Sale June 6th, 10 PM JST] 11-Piece Limited Edition Madagascar Sapphire Gacha (Including bi-color and silky varieties, 3.5-5.4mm) [Multi-buy discount available] Sale price¥4,980
【5/22 22時販売】《限定9石》こだわりカットガチャ💎通常39,800円の甲州貴石切子 plusthree「昴：アメトリン」や山本武氏の作品など（おまけでサンジェ氏シトリン1石）《複数購入割引有》

【5/22 22時販売】《限定9石》こだわりカットガチャ💎通常39,800円の甲州貴石切子 plusthree「昴：アメトリン」や山本武氏の作品など（おまけでサンジェ氏シトリン1石）《複数購入割引有》 Sale price¥4,980
【Available 10 PM on 6/7】《Limited to 10 Stones》Zircon Gacha including a rare Malawi bicolor zircon, usually priced at 29,800 yen 《Multiple Purchase Discount Available》

【Available 10 PM on 6/7】《Limited to 10 Stones》Zircon Gacha including a rare Malawi bicolor zircon, usually priced at 29,800 yen 《Multiple Purchase Discount Available》 Sale price¥4,980
ジェレメジェバイト 0.501ctルース

Namibian Jeremejevite 0.501ct loose stone (bicolor) Sale price¥89,800
カンボジア産ブルージルコン 0.744ctルース

Cambodian Blue Zircon 0.744ct Loose Stone Sale price¥7,980
マダガスカル産ピンクサファイア 0.239ctルース

[Sales on 6/13 at 10 PM] Madagascar Pink Sapphire 0.239ct Loose Stone, Japan-Germany Gemstone Institute certified Sale price¥18,800
[Sales on 6/16 at 10 PM] Myanmar Red Spinel 0.578ct Loose Gemstone

[Sales on 6/16 at 10 PM] Myanmar Red Spinel 0.578ct Loose Gemstone Sale price¥19,800
[Sale June 16th, 10 PM] Myanmar Red Spinel 0.453ct Loose Stone

[Sale June 16th, 10 PM] Myanmar Red Spinel 0.453ct Loose Stone Sale price¥19,800
[Sales begin June 15th, 10 PM] Myanmar Red Spinel 3.5mm/0.174ct Loose Stone

[Sales begin June 15th, 10 PM] Myanmar Red Spinel 3.5mm/0.174ct Loose Stone Sale price¥7,980
[Sale starts June 16th at 10 PM] Myanmar Red Spinel 3.3mm/0.172ct Loose Stone

[Sale starts June 16th at 10 PM] Myanmar Red Spinel 3.3mm/0.172ct Loose Stone Sale price¥8,800
ミャンマー産レッドスピネル 0.214ctルース

[Sales start 10 PM on June 16] Myanmar Red Spinel 3.5mm/0.214ct Loose Gemstone Sale price¥9,800
ミャンマー産レッドスピネル 0.194ctルース

[On sale June 14th at 10 PM] Myanmar Red Spinel 3.4mm/0.194ct Loose Stone Sale price¥9,800
[Sale starts June 16th, 10 PM JST] Myanmar Red Spinel 0.234ct Loose Gemstone

[Sale starts June 16th, 10 PM JST] Myanmar Red Spinel 0.234ct Loose Gemstone Sale price¥12,800
[On Sale June 16, 10 PM] Loose 0.249ct Myanmar Red Spinel

[On Sale June 16, 10 PM] Loose 0.249ct Myanmar Red Spinel Sale price¥12,800
Sold out マダガスカル産バイカラーサファイア 0.765ctルース

【Sales start June 14, 10 PM JST】Madagascar Bi-Color Sapphire 5.4mm/0.765ct Loose
マダガスカル産バイカラーサファイア 0.506ctルース

[On sale June 14, 10 PM JST] Madagascar Bi-Color Sapphire 4.5mm/0.506ct Loose Stone Sale price¥7,980
ブルーサファイア 0.369ctルース

[On sale June 13th at 10 PM] Blue Sapphire 0.369ct Loose Stone (with Japan-Germany gemological report) Sale price¥22,800
ブラジル産サンタマリアアクアマリン 0.215ctルース

[On Sale June 13th, 10 PM JST] Brazilian Santa Maria Aquamarine 0.215 ct Loose Stone with Appraisal Report Sale price¥15,800
ブラジル産サンタマリアアクアマリン 0.183ctルース

[Sale on June 13th at 10 PM] Brazilian Santa Maria Aquamarine 0.183ct Loose Stone with Certification Sale price¥12,800
スファレライト 3.980ctルース

Spanish Sphalerite 9.2mm/3.980ct loose stone Sale price¥49,800
タンザニア産ゾイサイト 0.203ctルース

[12550865] 0.203ct loose zoisite from Tanzania Sale price¥5,980
ミャンマー産ヴァイオレットスピネル 0.426ctルース

Myanmar Violet Spinel 0.426ct Loose Sale price¥8,800
スリランカ産スターサファイア 2.093ctルース

Sri Lankan Star Sapphire 2.093ct Loose Sale price¥8,800
スリランカ産スターサファイア 1.339ctルース

Sri Lankan Star Sapphire 1.339ct Loose Sale price¥12,800
スリランカ産スターサファイア 1.682ctルース

Sri Lankan Star Sapphire 1.682ct Loose Sale price¥12,800
スリランカ産スターサファイア 1.225ctルース

Sri Lankan Star Sapphire 1.225ct Loose Sale price¥12,800
Bicolor Zoisite 1.100ct Loose Stone (Bicolor Tanzanite)

Bicolor Zoisite 1.100ct Loose Stone (Bicolor Tanzanite) Sale price¥18,800
オレゴンサンストーン 0.462ctルース

Oregon Sunstone 0.462ct loose Sale price¥5,980
マダガスカル産パパラチアサファイア 0.282ctルース

[On sale June 7th at 10 PM] Madagascar Padparadscha Sapphire 3.9mm/0.282ct Loose Stone, DGL Certified Sale price¥43,800
マダガスカル産パパラチアサファイア 0.336ctルース

[On sale June 7th at 10 PM] Madagascar Padparadscha Sapphire 3.9mm/0.336ct Loose Stone DGL Certified Sale price¥45,800
バイカラーサファイア 1.040ctルース

[On sale June 8th, 10 PM] Bi-Color Sapphire 1.040 ct Loose Gemstone GIT Sale price¥29,800
非加熱ブルーサファイア 2.430ctルース

[On sale June 7, 10 PM] Untreated Blue Sapphire 2.430ct Loose Gemstone GIA Sale price¥258,000
カンボジア産ブルージルコン（ラタナキリブルー） 1.455ctルース

[On sale June 6th, 10 PM JST] Cambodian Blue Zircon (Ratanakiri Blue) 1.455ct Loose Stone with Gemological Report Sale price¥22,800
スリランカ産ジルコンキャッツアイ 2.087ctルース

[Sale on June 5th at 10 PM] Sri Lankan Zircon Cat's Eye 2.087ct Loose Stone with Appraisal Sale price¥39,800
マラウイ産バイカラージルコン 0.985ctルース

[On sale May 31st at 10 PM] Malawi Bicolor Zircon (Malawi Zircon) 0.985 ct Loose Sale price¥39,800
マラウイ産ブルージルコン 1.833ctルース

[On sale May 31st at 10 PM] Malawi Blue Zircon (Malawi Zircon) 1.833ct Loose Sale price¥98,000
マダガスカル産パパラチアサファイア 0.396ctルース

[On sale June 12, 10 PM JST] Madagascar Padparadscha Sapphire 4.1mm/0.396ct Loose Stone DGL Certified Sale price¥52,800
K18WG クロムトルマリン 0.70ctct・サファイア0.30ctペンダントトップ（ネックレストップ） 鑑別書

[On sale 10 PM on 6/14] [Colorful] K18WG Chrome Tourmaline 0.70ct / Sapphire 0.30ct Pendant Top (Necklace Top) with appraisal Sale price¥79,800
ピンクスピネル 0.713ctルース

Pink spinel 0.713ct loose stone Sale price¥8,800
Color change sapphire 0.473ct loose stone (purple sapphire)

Color change sapphire 0.473ct loose stone (purple sapphire) Sale price¥25,800
マダガスカル産グリーンサファイア 0.253ctルース

Madagascar Green Sapphire 0.253ct Loose Sale price¥9,800
マダガスカル産イエローサファイア 0.417ctルース

Madagascar Yellow Sapphire 4.4mm/0.417ct Loose Sale price¥14,800
Madagascar Blue Sapphire 0.302ct Loose

Madagascar Blue Sapphire 0.302ct Loose Sale price¥15,800
Madagascar pink sapphire 0.346ct loose stone

Madagascar pink sapphire 0.346ct loose stone Sale price¥15,800
マダガスカル産ピンクサファイア 0.243ctルース

Madagascar pink sapphire 0.243ct loose stone Sale price¥8,800
Sri Lankan Blue Sapphire 0.519ct Loose

Sri Lankan Blue Sapphire 0.519ct Loose Sale price¥14,800
タンザニア産グリーンゾイサイト 0.709ctルース

Tanzania Green Zoisite 0.709ct Loose Stone Sale price¥16,800

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.