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Sold out ブラジル産ホワイトカルセドニー 0.308ctルース
Sold out アフガニスタン産シーフォームトルマリン 0.245ctルース
Sold out アフガニスタン産シーフォームトルマリン 0.237ctルース
Sold out ロンドンブルートパーズ 0.985ctルース
Sold out ロンドンブルートパーズ 0.966ctルース
Sold out スカイブルートパーズ 1.256ctルース
Sold out ナイジェリア産モルガナイト 0.349ctルース
Sold out ナイジェリア産モルガナイト 0.381ctルース
Sold out スリランカ産スピネル 0.153ctルース
Sold out Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.
Sold out Limited to 15 stones: 1 loose Smithsonite stone (average 2 carats) Multiple purchase discounts available
Sold out Limited to 7 stones: 1 loose sphalerite stone from Spain (cabochon cut, 4.8-5.3mm) Multiple purchase discounts available
Sold out Limited to 5 stones: 1 green zircon from Sri Lanka. Discounts available for multiple purchases.
Sold out スペイン産スファレライト 1.498ctルース
Sold out ブラジル産フローライトインクォーツ 1.293ctルース
Sold out ブラジル産フローライトインクォーツ 0.795ctルース
Sold out ブラジル産フローライトインクォーツ 1.237ctルース
Sold out ブラジル産メデューサクォーツ(パライバクォーツ) 1.550ctルース
Sold out ブラジル産メデューサクォーツ(パライバクォーツ) 1.421ctルース
Sold out Pink tourmaline 0.795ct loose
Sold out スペイン産アンダリュサイト 0.582ctルース
Sold out スペイン産アンダリュサイト 0.469ctルース
Sold out ブラジル産カシャライアメジスト 0.387ctルース
Sold out 中国・湖南省シンシャ(辰砂・シナバー) 0.629ctルース
Sold out 中国・湖南省シンシャ(辰砂・シナバー) 0.469ctルース
Sold out 合成アレキサンドライト 0.228ctルース
Sold out ブラジル産ラベンダークォーツ(スコロライト) 0.976ctルース
Sold out GGG(ガドリウムガリウムガーネット) 0.658ctルース
Sold out 《Limited to 11 Stones》Aquamarine Gacha with Certified Santa Maria Aquamarine 《Multiple Purchase Discount Available》
Sold out 《Limited to 20 Gems》Big Gem Gacha 💎 Win a Camellia cut from Shimizu Kisaki, 19ct up 《Multiple purchase discount available》
Sold out Limited 10 Gemstones: Cat Cut Gacha 💎 Tourmaline, Opal, Chalcedony, etc. (Comes with a bonus mini cat cut) (Multiple purchase discount available)
Sold out 《Limited to 10 Stones》Win a Koshu cut "Checker x Comet" Mexican fire opal, normally priced at 79,800 yen! 💎Fire Opal Gacha (Plus, get one extra "Contraluz" stone!) 《Bulk purchase discount available》
Sold out Limited to 12 stones! Shinizu Kiseki's Sakura In-Cut Tourmaline Gacha (with bonus Tourmaline from Mr. Sanje) (Multiple purchase discount available)
Sold out 《Limited to 4 stones》Madagascar pezzottaite (round cut, approx. 3mm) by Sanjeev Singh, 1 loose stone《Multiple purchase discount available》
Sold out アフガニスタン産ラピスラズリ 1.103ctルース
Sold out マダガスカル産アイオライトサンストーン 0.388ctルース
Sold out ダイアスポア 0.757ctルース
Sold out トルコ産カラーチェンジダイアスポア 0.339ctルース
Sold out スリランカ産ヘソナイトガーネット 1.968ctルース
Sold out Bicolor Gacha including Brazilian parti-colored Paraiba tourmaline (CuO: 1.7%, MnO: 2.9%), bicolor sapphire, bicolor tourmaline, and specially cut bicolor fluorite, normally 79,800 JPY (multiple purchase discount available)
Sold out [Limited Quantity Remaining] 《Limited to 12 Stones》Topaz Gacha (including Imperial Topaz) where you can win a Koshu Kiski Kiriko plusthree "Akatsuki" (usually 35,800 yen) 《Multiple Purchase Discount Available》
Sold out 《Limited to 9 Stones》Color Shift Amethyst Gacha, including a 3.49ct "Kompeito Cut" by Makoto Nakano, normally priced at ¥22,800, and a cut by Mr. Sanje.《Bulk Purchase Discount Available》
Sold out 《Limited to 12 stones》Russian alexandrite and alexandrite from different origins (normally 69,800 yen) + free Sri Lankan chrysoberyl crystal《Multiple purchase discount available》
Sold out Garnet Gacha (Round Cut, 2.5mm) Cut by American Master Polisher KEN 《Bulk Purchase Discount Available》
Sold out 【Sales end Monday, August 31】Anime Moriarty the Patriot x Jewelry Specialty Store KARATZ Collaboration Acrylic Sticker Set
Sold out **Sales End: Monday, August 31st** - Anime *Moriarty the Patriot* x KARATZ Jewelry Store Collaboration Glitter Can Badges
Sold out **Sales end Monday, August 31st** Anime *Moriarty the Patriot* x Jewelry specialty store KARATZ collaboration acrylic keychain

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.