Mexican cantera opal 11.914ct loose
Sale price¥19,800
Silky sapphire from Sri Lanka 1.319ct loose
Sale price¥15,800
Silky sapphire from Sri Lanka 1.080ct loose
Sale price¥14,800
Silky sapphire from Sri Lanka 0.981ct loose
Sale price¥14,800
Silky sapphire from Sri Lanka 1.036ct loose
Sale price¥12,800
Silky sapphire from Sri Lanka 0.920ct loose
Sale price¥14,800
Silky sapphire from Sri Lanka 1.086ct loose
Sale price¥15,800
Alexandrite cat's eye from Sri Lanka 0.947ct loose
Sale price¥19,800
Bicolor tourmaline 0.974ct loose
Sale price¥15,800
Goshenite 6.5mm/1.066ct loose stone
Sale price¥12,800
Goshenite 6.7mm/0.995ct loose stone
Sale price¥12,800
Indigolite tourmaline 0.842ct loose
Sale price¥14,800
Indigolite tourmaline 0.750ct loose
Sale price¥14,800
Indigolite tourmaline 0.691ct loose
Sale price¥18,800
Silky diamond 2.7mm/0.090ct loose
Sale price¥12,800
Silky diamond 2.8mm/0.097ct loose
Sale price¥14,800
Silky diamond 2.7mm/0.086ct loose
Sale price¥14,800
Rhodochrosite 0.317ct loose from Detroit City
Sale price¥29,800
Rhodochrosite 0.331ct loose from Detroit City
Sale price¥29,800
Rhodochrosite 0.300ct loose from Detroit City
Sale price¥29,800
Sri Lankan Ratotta Topaz 7.709ct Loose (White Topaz)
Sale price¥15,800
Sri Lankan Ratotta Topaz 9.589ct Loose (White Topaz)
Sale price¥15,800
Sri Lankan Ratotta Topaz 9.926ct Loose (White Topaz)
Sale price¥19,800
Paraiba tourmaline from Mozambique 0.195ct loose
Sale price¥15,800
Brazilian dumortierite in quartz 2.443ct loose
Sale price¥24,800
Brazilian dumortierite in quartz 2.227ct loose
Sale price¥18,800
Brazilian dumortierite in quartz 1.796ct loose
Sale price¥15,800
Brazilian dumortierite in quartz 3.247ct loose
Sale price¥25,800
Brazilian dumortierite in quartz 1.517ct loose
Sale price¥12,800
Australian black opal 0.616ct loose
Sale price¥12,800
Australian black opal 0.559ct loose
Sale price¥12,800
Brazilian imperial topaz 2.093ct loose
Sale price¥29,800
Brazilian imperial topaz 0.359ct loose
Sale price¥15,800
Lazurite in quartz 0.877ct loose
Sale price¥25,800
Lazurite in quartz 0.959ct loose
Sale price¥29,800
Paraiba tourmaline from Mozambique 0.130ct loose
Sale price¥22,800
Hokkaido rhodochrosite 0.835ct loose
Sale price¥14,800
Benitoite 0.091ct loose (emerald cut)
Sale price¥29,800
Silky sapphire from Sri Lanka 0.868ct loose
Sale price¥12,800
Alexandrite cat's eye 0.941ct loose
Sale price¥22,800
Tibetan bicolor andesine 1.972ct loose
Sale price¥24,800
Tibetan bicolor andesine 1.856ct loose
Sale price¥22,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 4.626ct loose
Sale price¥16,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 3.089ct loose
Sale price¥11,000
Bloodshot Iolite Sunstone 1.250ct Loose
Sale price¥12,800
Pezzotite cat's eye from Madagascar 0.310ct loose
Sale price¥24,800
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.