Brazilian Santa Maria Aquamarine 0.206ct loose stone
Sale price¥12,800
Brazilian Blue Topaz 2.912ct Loose
Sale price¥12,800
Russian Diopside 0.402ct Loose Stone
Sale price¥8,800
Madagascar sphene 1.002ct loose stone
Sale price¥15,800
Madagascar sphene 0.991ct loose stone
Sale price¥12,800
Madagascar sphene 1.080ct loose stone
Sale price¥12,800
Bicolor tourmaline 1.833ct loose
Sale price¥18,800
Brazilian Rubellite 0.897ct loose stone
Sale price¥29,800
Brazilian Rubellite Cat's Eye 1.484ct Loose Stone
Sale price¥39,800
Purple sapphire 0.419ct loose stone
Sale price¥15,800
Burmese Red Spinel 3.6mm/0.216ct Loose Stone
Sale price¥8,800
Pt900 Kashmir unheated sapphire 1.14ct / diamond 0.70ct ring GIA
Sale price¥1,580,000
Brazilian rutilated quartz (rutilated quartz) 8.0mm/1.335ct loose stone
Sale price¥12,800
Brazilian rutilated quartz (rutilated quartz) 7.8mm/1.320ct loose stone
Sale price¥12,800
Brazilian rutilated quartz (rutilated quartz) 8.1mm/1.619ct loose stone
Sale price¥12,800
Brazilian rutilated quartz (rutilated quartz) 7.8mm/1.307ct loose stone
Sale price¥12,800
Peruvian Rhodochrosite 2-stone set 12.816ct rough stone
Sale price¥15,800
Chrysoprase 3.108ct loose stone
Sale price¥8,800
Chrysoprase 2.959ct loose stone
Sale price¥8,800
Chrysoprase 3.003ct loose stone
Sale price¥9,800
Pakistani Oil in Quartz 0.442ct Loose Stone
Sale price¥9,800
Brazilian Alexandrite 0.128ct loose stone
Sale price¥25,800
Brazilian Green Tourmaline 42.854ct Loose Stone
Sale price¥198,000
Brazilian Dumortierite in Quartz 2.551ct Loose Stone
Sale price¥19,800
Congo Dioptase 29.012ct rough stone
Sale price¥5,980
Hackmanite rough stone from Afghanistan, 7.183ct
Sale price¥39,800
Congo Dioptase 24.371ct rough stone
Sale price¥9,800
Congo Dioptase 24.892ct rough stone
Sale price¥9,800
Congo Dioptase 32.632ct rough stone
Sale price¥15,800
Congo Dioptase 46.537ct rough stone
Sale price¥18,800
Congo Dioptase 52.488ct rough stone
Sale price¥19,800
Congo Dioptase 79.498ct rough stone
Sale price¥31,800
Congo Dioptase 34.022ct rough stone
Sale price¥15,800
Congo Dioptase 85.471ct rough stone
Sale price¥34,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.441ct Loose Stone
Sale price¥22,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.568ct Loose Stone
Sale price¥22,800
Brazilian bicolor tourmaline 0.644ct loose stone
Sale price¥9,800
Spanish Sphalerite 1.372ct loose stone
Sale price¥12,800
Sri Lankan Silky Sapphire 1.166ct Loose
Sale price¥12,800
Silky sapphire from Sri Lanka 0.975ct loose
Sale price¥8,800
Blue sapphire 3.9mm/0.279ct loose stone
Sale price¥9,800
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.
業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。
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.