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Sold out コッパールチルクォーツ 1.747ctルース
Sold out ブラッドショットアイオライトサンストーン 1.250ctルース
Sold out アフガニスタン産ハックマナイト 0.111ctルース
Sold out グリーントルマリン 2.144ctルース
Sold out Indian alexandrite cat's eye 0.422ct loose
Sold out Indian alexandrite cat's eye 0.679ct loose
Sold out オーストラリア産レインボーラティスサンストーン 1.635ctルース
Sold out オーストラリア産レインボーラティスサンストーン 1.013ctルース
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) 0.960ctルース
Sold out Montana Sapphire 0.449ct loose (bicolor sapphire)
Sold out Montana sapphire 0.359ct loose (blue sapphire)
Sold out Blue Stone Gacha (normally 22,800 JPY for Brazilian Paraiba Tourmaline (CuO: 1.7%, MnO: 2.1%), Mozambique Paraiba Tourmaline, Zimbabwean Euclase, etc.)《Bulk Purchase Discount Available》
Sold out Limited to 10 stones! Pigeon Blood Ruby (normally priced at 39,800 yen) Red Gemstone Gacha with AIGS Certificate (Multiple purchase discounts available)
Sold out [Available at 10 PM on January 24th] Limited to 18 stones: Golden Hill Turquoise from Kazakhstan (December birthstone, average 1.3 carats) [Multiple purchase discounts available]
Sold out Limited to 6 stones: Brazilian dendritic quartz (new to Tucson, average 2.5 carats) [Multiple purchase discounts available]
Sold out Limited to 8 stones - New in Tucson - Canadian Eudialite (Round Cut, Approx. 2mm) - Multiple purchase discounts available
Sold out K18YG Russian Demantoid Garnet (horsetail inclusion) 4mm/0.382ct, Bekily Blue Garnet Ring
Sold out 0.085ct loose, non-oil red beryl from the United States, GIA
Sold out バイカラーベニトアイト 0.282ctルース
Sold out 【12558711掲載】ドゥニライト 0.132ctルース
Sold out Brazilian Blue Tourmaline in Quartz 4.256ct Loose Stone
Sold out 【12561996掲載】メキシコ産ファイアオパール 1.260ctルース
Sold out 【12561997掲載】メキシコ産ファイアオパール 1.461ctルース
Sold out 【12562003掲載】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) 1.207ctルース
Sold out 【12562004掲載】スペイン産スファレライト 0.903ctルース
Sold out 【12562005掲載】スペイン産スファレライト 0.878ctルース
Sold out 【12562007掲載】スペイン産スファレライト 0.920ctルース
Sold out 【12562009掲載】スペイン産スファレライト 1.475ctルース
Sold out 【12562017掲載】ブラジル産ヘルデライト 0.421ctルース
coming soon 【12562018掲載】ブラジル産ヘルデライト 0.509ctルース
Sold out Datolite from the USA, 0.592ct Loose Stone (Westfield, Manchester)
Sold out 【12562021掲載】ファイアオパール 6.742ctルース
Sold out 【12562025掲載】ブラジル産ライモナイトインブルートパーズ 6.701ctルース
Sold out 【12562044掲載】オーストラリア産レインボーラティスサンストーン 2.188ctルース
Sold out 【12562049掲載】オーストラリア産レインボーラティスサンストーン 0.373ctルース
Sold out 【12562052掲載】カナダ産カナダ産ユーディアライト 5.714ctルース
Sold out 【12562053掲載】カナダ産カナダ産ユーディアライト 3.359ctルース
Sold out Canada Eudialyte 2.5mm/0.059ct Loose Stone with Certificate of Authenticity
Sold out Canadian Eudialyte 2.5mm/0.047ct Loose Stone with Certification
coming soon Canadian Eudialite 2.5mm/0.051ct Loose Stone with Certificate of Authenticity
Sold out American Neptunite 0.290ct Loose Stone with Certificate of Authenticity
Sold out 【12562061掲載】アメリカ産ネプチュナイト 0.256ctルース
Sold out American Neptunite 0.207ct Loose Stone with Certificate of Authenticity
Sold out Mali Garnet (Grossular/Andradite Garnet) 0.675ct Loose Stone
Sold out 【12559023掲載】ブラジル産アベンチュリンベリル 0.621ctルース
Sold out Limited to 2 stones: Greenland Ruby, 1 stone, loose (2.2mm, top color, with certificate) (Multiple purchase discount available)
Sold out 《Limited to 2 Stones》Greenland Pink Sapphire Loose Stone (5.0mm, Heart-shaped, with Certificate) 《Multiple Purchase Discount Available》
Sold out 《Limited to 15 stones》Topaz Gacha with Koshu Kiseki Kiriko 10ct (normally 69,800 yen) and sherry-colored Imperial Topaz included 《Multiple purchase discount available》

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.