Bicolor grossular garnet from Tanzania 2.454ct loose
Sale price¥12,800
Mexican Hyalite Opal 63.479ct rough stone
Sale price¥19,800
Mexican Hyalite Opal 13.614ct rough stone
Sale price¥15,800
Brazilian dumortierite in quartz 4.592ct loose
Sale price¥15,800
Bicolor Zoisite 0.581ct loose
Sale price¥15,800
Brazilian alexandrite 0.112ct loose
Sale price¥13,800
Bicolor tanzanite 0.581ct loose
Sale price¥23,800
Australian black opal 2.122ct loose
Sale price¥24,800
Yellow diamond rough stone (makeable) 0.247ct rough stone
Sale price¥22,800
Mexican cantera opal 15.542ct loose
Sale price¥19,800
Mexican cantera opal 9.422ct loose
Sale price¥29,800
Mexican cantera opal 7.563ct loose
Sale price¥19,800
Brazilian Euclase 1.240ct loose
Sale price¥22,800
Tanzanite 1.593ct loose
Sale price¥15,800
Tanzanite 1.297ct loose
Sale price¥12,960
Beryl 0.951ct loose
Sale price¥12,800
Beryl 6.5mm/1.032ct loose stone
Sale price¥12,800
Australian boulder opal 4.470ct loose
Sale price¥29,800
White topaz 16.06ct loose
Sale price¥29,800
Bicolor grossular garnet 0.782ct loose
Sale price¥16,800
Paraiba tourmaline from Mozambique 0.256ct loose
Sale price¥18,800
Paraiba tourmaline from Mozambique 0.207ct loose
Sale price¥12,800
Indigolite tourmaline 0.260ct loose Japanese-German book
Sale price¥18,800
Purple spinel 0.995ct loose stone
Sale price¥18,800
Mexican Fire Opal 4.5mm/0.244ct Loose
Sale price¥12,800
Myanmar star diopside 0.898ct loose
Sale price¥12,800
Paraiba tourmaline from Mozambique 0.215ct loose
Sale price¥12,800
Paraiba tourmaline from Mozambique 0.257ct loose
Sale price¥12,800
Paraiba tourmaline from Mozambique 0.274ct loose
Sale price¥15,800
Chrysoberyl cat's eye 2.283ct loose
Sale price¥22,800
Colombian emerald cat's eye 0.110ct loose
Sale price¥12,800
Paraiba tourmaline from Mozambique 0.229ct loose
Sale price¥12,800
Colombian Euclase 3.417ct rough stone
Sale price¥12,800
[Rouge cut] Almandine garnet 2.090ct loose
Sale price¥12,800
[Rouge cut] Almandine garnet 2.076ct loose
Sale price¥12,800
Oregon Sunstone 0.976ct loose
Sale price¥19,800
Synthetic rutile 5mm/0.553ct loose stone
Sale price¥15,800
Synthetic rutile 5.8mm/0.904ct loose stone
Sale price¥15,800
Strontium titanate 5mm/0.688ct loose stone
Sale price¥15,800
Strontium titanate 4.2mm/0.410ct loose stone
Sale price¥12,800
YAG (Yttrium Aluminum Garnet) 7mm/1.775ct Loose Stone
Sale price¥12,800
Paraiba tourmaline from Mozambique 0.388ct loose
Sale price¥24,800
Paraiba tourmaline from Mozambique 0.272ct loose
Sale price¥15,800
Paraiba tourmaline from Mozambique 0.596ct loose
Sale price¥29,800
Paraiba tourmaline from Mozambique 0.273ct loose
Sale price¥18,800
Paraiba tourmaline from Mozambique 0.228ct loose
Sale price¥12,800
Bicolor Andesine 6mm/0.756ct loose
Sale price¥15,800
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.