Sri Lankan saffron 0.517ct loose stone, Japan-German
Sale price¥59,800
Cinnabar rough stone (38.1 x 28.8 x 22.4 mm)
Sale price¥98,000
American Benitoite 0.167ct loose stone
Sale price¥59,800
American Benitoite 0.150ct loose stone (emerald cut)
Sale price¥69,800
American Benitoite 3.1mm/0.129ct loose stone
Sale price¥59,800
Spanish Sphalerite 12.5mm/9.860ct Loose Stone
Sale price¥98,000
Pakistani Lazurite (Azurite) 0.290ct loose stone
Sale price¥98,000
Sri Lankan bicolor sapphire 1.020ct loose stone
Sale price¥59,800
Bicolor Sapphire 5.640ct Loose Stone with Certificate
Sale price¥98,000
Colombian emerald 0.203ct loose stone with certificate
Sale price¥98,000
Russian demantoid garnet (horsetail recognized) 0.291ct loose
Sale price¥69,800
Sri Lankan Cat's Eye Sapphire 2.177ct Loose
Sale price¥98,000
Brazilian Santa Maria Aquamarine 0.968ct loose stone
Sale price¥69,800
Myanmar color change zircon 0.720ct loose stone
Sale price¥69,800
Russian Alexandrite 0.065ct loose stone
Sale price¥59,800
Brazilian Rubellite 2.439ct loose stone
Sale price¥69,800
Spanish Sphalerite 4.445ct loose stone
Sale price¥98,000
Nigerian Blue Garnite 0.794ct Loose Stone, Japan-Germany Exchange
Sale price¥79,800
American Red Beryl 0.254ct Loose
Sale price¥59,800
American Red Beryl 0.260ct Loose
Sale price¥69,800
Brazilian unheated pink imperial topaz (sherry pink) 0.931ct loose stone
Sale price¥98,000
Zimbabwe bicolor euclase 0.205ct loose stone
Sale price¥98,000
Spanish Sphalerite 11mm/7.286ct loose stone
Sale price¥98,000
Colombian emerald 10.940ct rough stone
Sale price¥69,800
Myanmar Musgravite/Spinel 8.005ct Loose Stone Japan-Germany
Sale price¥98,000
Sri Lankan Purple Star Sapphire 2.461ct Loose
Sale price¥69,800
[Takeshi Yamamoto] Brazilian Ametrine 29.930ct loose stone
Sale price¥79,800
Mexican Cantera Opal 6.112ct Loose
Sale price¥59,800
Brazilian bicolor tourmaline 7.445ct loose stone
Sale price¥69,800
Synthetic Black Opal 5.013ct Loose
Sale price¥59,800
6.392ct Bicolor Sphalerite Loose Stone from Spain
Sale price¥69,800
Zimbabwean Euclase 2.976ct rough stone
Sale price¥98,000
Congo Andesine 18.643ct Loose Stone Japan-Germany Exchange
Sale price¥69,800
American Benitoite 3.5mm/0.192ct Loose Stone (Contains Minerals)
Sale price¥69,800
Sri Lankan Star Sapphire 7.976ct Loose
Sale price¥98,000
Colombian Trapiche Emerald 2.730ct Loose
Sale price¥98,000
Colombian Euclase 2.360ct loose
Sale price¥79,800
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.