Russian demantoid garnet (horsetail recognized) 4.6mm/0.425ct loose
Sale price¥69,800
YAG (yttrium aluminum garnet) 1.870ct loose
Sale price¥9,800
Color change Andesine 1.90ct loose
Sale price¥29,800
Color change Andesine 1.67ct loose
Sale price¥25,800
Goethite in quartz 1.020ct loose
Sale price¥2,980
Brazilian Paraiba tourmaline 0.455ct raw stone (CuO: 0.9%, MnO: 2.2%)
Sale price¥15,800
Brazilian Paraiba tourmaline 0.448ct raw stone (CuO:2.7%, MnO:2.0%)
Sale price¥19,800
Brazilian alexandrite 0.102ct loose
Sale price¥15,800
Royal blue sapphire 1.220ct loose stone
Sale price¥298,000
Cornflower blue sapphire 0.490ct loose stone
Sale price¥98,000
Pigeon Blood Ruby 0.280ct Loose
Sale price¥49,800
[12560244] Bicolor Zoisite 0.508ct Loose Stone
Sale price¥7,980
[12560246] Green Zoisite 1.316ct Loose Stone
Sale price¥15,800
Colombian mint-colored emerald, 4.3mm/0.306ct loose stone
Sale price¥8,800
[12560252] Zambian emerald 0.138ct loose stone
Sale price¥8,800
Myanmar Leuco Garnet 4.0mm/0.371ct Loose Stone
Sale price¥39,800
Bicolor sapphire 0.334ct loose
Sale price¥9,800
Bicolor sapphire 0.149ct loose
Sale price¥6,980
Bicolor sapphire 0.323ct loose
Sale price¥9,800
Malaya garnet 0.972ct loose
Sale price¥9,800
White sapphire 0.464ct loose
Sale price¥9,800
White sapphire 0.418ct loose
Sale price¥12,800
Yellow sapphire 0.385ct loose
Sale price¥9,800
White sapphire 0.364ct loose
Sale price¥9,800
White sapphire 0.212ct loose
Sale price¥6,980
White sapphire 4.5mm/0.414ct loose
Sale price¥12,800
White sapphire 0.338ct loose
Sale price¥9,800
Sweet Home rhodochrosite 2 stone set 2.6mm/0.228ct loose
Sale price¥9,800
Purple spinel 0.825ct loose stone
Sale price¥5,980
Morganite 0.960ct loose (Asscher cut)
Sale price¥9,800
[On sale at 10pm on August 19th] Sliced Trapiche Diamond 0.228ct Loose
Sale price¥18,800
Sri Lankan Yellow Sapphire 0.300ct Loose
Sale price¥15,800
Salt and Pepper Diamond 5.2mm/0.863ct Loose (Cabochon Cut)
Sale price¥98,000
Russian oil-free emerald 0.570ct loose stone GIA
Sale price¥298,000
Afghanistan Oil-Free Emerald 0.100ct Loose GIA
Sale price¥98,000
Pakistani Veirinite 0.177ct Loose Stone with Certificate of Authenticity
Sale price¥39,800
Zimbabwean sphene 0.457ct loose stone
Sale price¥8,800
Zimbabwean sphene 0.393ct loose stone
Sale price¥8,800
Pakistani Peridot 0.361ct Loose Stone
Sale price¥4,980
American Peridot 0.458ct Loose Stone
Sale price¥6,980
Pakistani Peridot 0.410ct Loose Stone
Sale price¥6,980
Pakistani Peridot 0.376ct Loose Stone
Sale price¥6,980
American Peridot 0.546ct Loose Stone
Sale price¥5,980
American Peridot 0.432ct Loose Stone
Sale price¥6,980
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.