Opal 1.242ct loose stone
Sale price¥19,800
Tanzanian Kornerupine 0.500ct Loose Stone
Sale price¥39,800
Tanzanian Kornerupine 0.616ct loose stone
Sale price¥49,800
Tanzanian Violet Spinel 0.541ct Loose Stone
Sale price¥9,800
Tanzanian bicolor tanzanite 5.0mm/0.585ct loose stone
Sale price¥15,800
Aventurine Aquamarine 7.3mm/1.310ct Loose
Sale price¥14,800
Mozambique Almandine Garnet 0.965ct Loose Stone
Sale price¥12,800
South African diamond rough (sawable) 0.103ct rough (with trigon)
Sale price¥24,800
Australian white opal 2.318ct loose
Sale price¥12,800
German Awinite 0.129ct loose stone
Sale price¥55,800
German Awinite 0.119ct loose stone
Sale price¥49,800
Sri Lankan Rhodolite Garnet 1.858ct Loose Stone
Sale price¥15,800
Tanzania UV type bicolor tsavorite 0.947ct loose stone
Sale price¥39,800
Afghanistan Bicolor Tourmaline 1.653ct Loose Stone
Sale price¥49,800
Tanzanite from Tanzania 1.045ct loose stone
Sale price¥29,800
Oregon Sunstone from the United States 0.596ct loose stone
Sale price¥12,800
Cambodian colorless zircon 1.806ct loose stone
Sale price¥15,800
Cambodian colorless zircon 1.407ct loose stone
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.328ct Loose Stone
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 4.3mm/0.292ct Loose Stone
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.309ct Loose Stone
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 3.046ct loose stone
Sale price¥45,800
Brazilian Paraiba Tourmaline in Quartz 1.530ct Loose Stone
Sale price¥29,800
Brazilian Paraiba Tourmaline in Quartz 7.9mm/1.133ct Loose Stone
Sale price¥22,800
Brazilian Paraiba Tourmaline in Quartz 1.054ct Loose Stone
Sale price¥18,800
Madagascar Blue Sapphire (Ice Blue) 0.263ct Loose
Sale price¥12,800
Madagascar pink sapphire 0.275ct loose stone
Sale price¥12,800
Madagascar Blue Sapphire (Ice Blue) 0.694ct Loose
Sale price¥18,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.531ct Loose Stone
Sale price¥29,800
Sri Lankan Blue Sapphire 4.3mm/0.371ct Loose Stone
Sale price¥12,800
Round Diamond 0.389ct Loose (Cabochon Cut)
Sale price¥39,800
Sri Lankan Yellow Sapphire 0.223ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.250ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.407ct Loose
Sale price¥15,800
Sri Lankan Yellow Sapphire 0.403ct Loose
Sale price¥15,800
Indian Moonstone 2.290ct Loose
Sale price¥12,800
Blue beryl (Macis beryl) 0.250ct loose stone
Sale price¥12,800
Synthetic Opal 2.026ct Loose
Sale price¥19,800
Mexican Cantera Opal 14.458ct loose stone (faceted cut)
Sale price¥14,800
Mexican Fire Opal (Faceted Cut) 0.608ct Loose
Sale price¥12,800
Mexican Opal (Faceted Cut) 0.496ct Loose
Sale price¥9,800
Green Apatite from Madagascar 1.580ct loose stone
Sale price¥14,800
Mozambique Rhodolite Garnet 5.7mm/1.188ct Loose Stone
Sale price¥12,800
Colombian emerald cat's eye 3.6mm/0.179ct loose stone
Sale price¥8,800
Colombian emerald cat's eye 0.217ct loose stone
Sale price¥9,800
Colombian emerald cat's eye 0.421ct loose stone
Sale price¥12,800
Brazilian Rutile Cat's Eye 3.306ct Loose Stone (Red Rutile Quartz)
Sale price¥16,800
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.