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coming soon チベット産バイカラーアンデシン 1.856ctルース
Sold out タンザニア産レピドライト 1.035ctルース
Sold out 【クローバーインカット】コロンビア産エメラルド 8mm/1.663ctルース《コラボ》 ワッペン付
Sold out チベット産バイカラーアンデシン 1.818ctルース
Sold out Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture 6.7mm/1.488ct Loose
Sold out Star Ruby from Sri Lanka, 5.0mm/1.062ct Loose Stone, with Identification Report
Sold out Brazilian Dumortierite in Quartz 1.736ct Loose
Sold out Unheated Madagascar Purple Sapphire 1.170ct Loose GIT
Sold out Unheated Blue Sapphire from Madagascar, 1.380ct Loose, AIGS
Sold out 1.091ct loose Australian black opal
Sold out Brazilian bicolor tourmaline 1.016ct loose stone
Sold out モンゴル産アンデシン 1.354ctルース
Sold out 合成モアッサナイト(グレーブルー) 1.701ctルース
Sold out Myanmar Color Change Zircon 5.3mm/1.043ct Loose Stone
Sold out Tanzanian Dragon Garnet 1.181ct Loose Stone
Sold out Tanzanian Dragon Garnet 1.042ct Loose Stone
Sold out Indian Parrot Chrysoberyl Cat's Eye 5.0mm/1.099ct Loose Stone
Sold out Indian Parrot Chrysoberyl Cat's Eye 1.225ct Loose
Sold out Indian Parrot Chrysoberyl Cat's Eye 5.6mm/1.715ct Loose Stone
Sold out 1.175ct loose Australian white opal
Sold out Royal Blue Sapphire 1.00ct Loose AIGS
Sold out ゴーシェナイト 1.989ctルース
Sold out ダンビュライト 1.427ctルース
Sold out ロシア産デマントイドガーネット(ホーステール認む) 1.058ctルース
Sold out マダガスカル産バイカラークリソベリル 1.590ctルース
Sold out Brazilian Dumortierite in Quartz 1.779ct Loose Stone
Sold out [12/10 22:00] Mali Garnet (Grossular/Andradite Garnet) 1.008ct Loose Stone from the Republic of Mali with Certificate of Authenticity
Sold out Chinese Cinnabar (Cinnabar) 1.062ct Loose Stone with Certificate of Authenticity
Sold out [12/5 22:00] Russian Phenakite 6.6mm/1.058ct Loose Stone
Sold out オーストラリア産ボルダーオパール 1.730ctルース
Sold out [Sakura In-Cut] Tibetan Andesine 8.0mm/1.366ct Loose Stone
Sold out [Dandelion Cut] Tibetan Color-Change Andesine 8.0mm/1.883ct Loose Gemstone
Sold out [Sakura Shape] Oregon Sunstone from the United States, 1.201ct Loose
Sold out Loose 1.206ct Oregon Sunstone from the USA
Sold out [Sakura Shape] Oregon Sunstone from the United States, 1.104ct Loose
Sold out Red coral (coral) 1.406ct loose stone
Sold out Red coral (coral) 1.467ct loose stone
Sold out メキシコ産ファイアオパール 1.283ctルース
Sold out メキシコ産ファイアオパール 1.413ctルース
Sold out Australian white opal 1.928ct loose
Sold out 1.837ct loose Australian black opal
Sold out Madagascar Bicolor Sapphire 5.8mm/1.006ct Loose
Sold out Brazilian Dumortierite in Quartz 1.995ct Loose Stone
Sold out Brazilian Dumortierite in Quartz 1.924ct Loose Stone
Sold out Beryl 6.5mm/1.032ct loose stone
Sold out オレゴンサンストーン 1.157ctルース
Sold out メキシコ産ファイアオパール 4.5mm/0.244ctルース
Sold out Synthetic sapphire 1.416ct loose stone (synthetic pink 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.