Spanish bicolor sphalerite 5.289ct loose stone
Sale price¥59,800
Mexican Opal (Faceted Cut) 1.052ct Loose
Sale price¥19,800
Mexican Opal (Faceted Cut) 0.640ct Loose
Sale price¥14,800
Mexican Opal 1.639ct Loose (Contralus Opal)
Sale price¥29,800
[Sakura Shape] Mexican Opal 2.551ct Loose Patch
Sale price¥59,800
[Takeshi Yamamoto] Ametrine 20.856ct loose stone
Sale price¥98,000
Sri Lankan Yellow Sapphire 0.272ct Loose (Bicolor)
Sale price¥12,800
Spanish Sphalerite 7mm/1.676ct loose stone
Sale price¥35,800
Sri Lankan Chrysoberyl Cat's Eye 0.519ct Loose Stone
Sale price¥8,800
Mexican Yellow Opal 0.673ct Loose
Sale price¥8,800
Mexican Yellow Opal 0.428ct Loose
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.261ct Loose
Sale price¥12,800
Diamond (cabochon cut) 0.183ct loose
Sale price¥24,800
Russian Yellow Diamond Rough (Sawable) 0.306ct Rough (Trigon)
Sale price¥98,000
Sri Lankan Goethite Topaz 4.992ct Loose Stone
Sale price¥14,800
[Koshu Precious Stone Cutting Pluethree] Yellow Beryl 0.880ct Loose
Sale price¥29,800
Czech Aragonite 8.0mm/2.082ct Loose Stone
Sale price¥69,800
Japanese style twin crystal 4.715ct raw stone
Sale price¥15,800
Spanish bicolor sphalerite 3.504ct loose stone
Sale price¥38,800
1.953ct Bicolor Sphalerite from Spain
Sale price¥25,800
Madagascar Yellow Sapphire 0.863ct Loose
Sale price¥18,800
Yellow Sapphire 4.0mm/0.266ct Loose
Sale price¥12,800
Montana Sapphire 0.405ct Loose (Green Sapphire)
Sale price¥9,800
Brazilian Yellow Beryl 11.411ct Loose Stone, Japan-Germany Exchange
Sale price¥25,800
Madagascar Yellow Sapphire 0.283ct Loose
Sale price¥6,980
Vietnam Yellow Beryl (Heliodor) 0.904ct Loose Stone
Sale price¥8,800
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.
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.