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Red beryl 0.173ct loose Sale price¥38,800

Red beryl 0.136ct loose Sale price¥29,800

Red beryl 0.131ct loose Sale price¥28,800

Ruby 0.194ct loose Sale price¥8,800

Sold out Let's try polishing gemstones with the "Do-it-yourself gemstone polishing kit" (for intermediate users: Andesine Labradorite from Madagascar)
Sold out 宝石研磨に挑戦してみよう「自分で出来る原石磨きセット」(中級者向け:ラブラドライト)
Sold out 北海道産ロードクロサイト1石ルース(6×4,オーバル)
Sold out 1 stone of Hokkaido rhodochrosite (5 x 3 mm, pear-shaped cut)《Discount available for multiple purchases》
Sold out 含浸ルビー・天然ルビー見分け2点セット - KARATZ STORE|カラッツSTORE
Sold out [On sale 10/26 at 10 PM] {3 stones left} Ruby Loose Gacha: Win a 0.59ct Pigeon Blood Ruby with AIGS or a Burmese Star Ruby {Multiple purchase discounts available}
Sold out グリーンランド産アイスルビー 1石(ハートシェイプ,4mm,ピンクサファイア)《複数購入割引有》
Sold out 《限定12石》ブラジル産ラズライト(天藍石)1石ルース(初心者向け)《複数購入割引有》
Sold out グリーンランド産ルビー 1石(ラウンドカット,2mm)
Sold out Rhodolite garnet (octagonal cut) 1ct 1 stone
Sold out Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.
Sold out 【猫カット】ローズクォーツ(8mm) - カラッツSTORE
Sold out Mini Kite Cut Loose Stone (Includes 2 Paraiba Tourmalines, Green Beryl, Ruby, Peridot, etc.) {Multiple Purchase Discounts Available}
Sold out [Limited to 8 stones] Jam Gacha💎 1 Rainbow Garnet stone (January birthstone) from Tenkawa Village, Nara Prefecture [Multiple purchase discounts available]
Sold out Greenland Ruby Loose (approx. 2.3mm, Top Color, Certificate Included) (Multiple Purchase Discounts Available)
Sold out [Available at 10 PM on September 21st] Rainbow Garnet (Rose Cut, 3.0-5.5mm) Loose Stone from Tenkawa Village, Nara Prefecture (Multiple Purchase Discounts Available)
Sold out Limited to 7 stones: 1 Hokkaido rhodochrosite loose stone (4mm, rose cut) Multiple purchase discounts available
Sold out グリーンランド産アイスルビー 1石(ハートシェイプ,4mm)
Sold out 【カメリアカット】レモンクォーツ8mmルース 直筆サイン付&ワッペン付 - カラッツSTORE
Sold out ブラジル産ラズライトインクォーツ 0.283ctルース
Sold out アンデシン・ラブラドライトムーンストーン(通称名 レインボームーンストーン) 0.723ctルース
Sold out ローズクォーツ 8.640ctルース
Sold out ピジョンブラッドルビー 3.7mm/0.230ctルース AIGS
Sold out ブラジル産ルベライト 2.588ctルース
Sold out K18YG アンデシン・ラブラドライト(通称名 ブルームーンストーン) 0.395ct リング
Sold out 奈良県天川村産レインボーガーネット(アンドラダイトガーネット) 0.577ctルース
Sold out Lottery Sale ① [Reserved for Winners] [Published on 12560878] [Koshu Precious Stones Cut by plusthree] 《Cut Rose Quartz》 13.682ct Loose Stone
Sold out ブラジル産レインボースキャポライト 0.652ctルース
Sold out ノンオイルレッドベリル 0.200ctルース GIA
Sold out ルチルレイテッドクォーツ 5.870ctルース

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.