Tanzanite from Tanzania 1.243ct loose stone
Sale price¥45,800
Oregon Sunstone from the United States 6mm/0.849ct loose stone
Sale price¥22,800
[Koshu Precious Stone Cutting Pluethree] Yellow Beryl 0.880ct Loose
Sale price¥29,800
Colombian pyrite-mica emerald 0.901ct loose stone
Sale price¥45,800
Colombian pyrite-mica emerald 0.739ct loose stone
Sale price¥36,800
Brazilian Green Tourmaline 9.495ct Loose
Sale price¥128,000
Zimbabwean Apatite (UV type) 1.393ct loose stone
Sale price¥29,800
Mozambique rubellite 1.141ct loose stone
Sale price¥29,800
Brazilian alexandrite 0.081ct loose
Sale price¥16,800
Myanmar Trapiche Ruby 2.6mm/0.125ct Loose Stone
Sale price¥5,980
Brazilian Limonite in Topaz 5.709ct loose stone
Sale price¥9,800
Mexican Cantera Opal 4.835ct Loose
Sale price¥19,800
YAG (Yttrium Aluminum Garnet) 6.5mm/1.551ct Loose Stone
Sale price¥19,800
Tanzania Bicolor Zoisite 0.645ct Loose Stone
Sale price¥12,800
Tanzania Zoisite 1.000ct Loose Stone
Sale price¥19,800
Mexican Fire Opal 0.356ct Loose (Faceted Cut)
Sale price¥9,800
Brazilian Rubellite Cat's Eye 1.180ct Loose Stone
Sale price¥29,800
Colombian pyrite-mica emerald 0.983ct loose stone
Sale price¥49,800
Brazilian Green Tourmaline 1.193ct Loose Stone
Sale price¥49,800
Tanzanite from Tanzania 1.162ct loose stone
Sale price¥39,800
Tanzanite from Tanzania 1.577ct loose stone
Sale price¥49,800
Brazilian Indigolite Tourmaline 6.052ct Loose Stone JTL
Sale price¥158,000
Mexican Fire Opal 4.9mm/0.333ct Loose
Sale price¥8,800
Mexican Fire Opal 7.1mm/0.911ct Loose
Sale price¥25,800
Mexican Fire Opal 6.7mm/0.953ct Loose
Sale price¥25,800
Colombian Trapiche Emerald 0.422ct Loose
Sale price¥22,800
Colombian Trapiche Emerald 0.746ct Loose
Sale price¥39,800
Paraiba tourmaline from Brazil 0.047ct loose
Sale price¥29,800
Tanzanian bicolor sapphire 0.152ct loose stone
Sale price¥6,980
Tanzanian bicolor sapphire 0.118ct loose stone
Sale price¥4,980
Tanzanian bicolor sapphire 0.128ct loose stone
Sale price¥6,980
Tanzanian bicolor sapphire 0.181ct loose stone
Sale price¥6,980
Vietnam Aquamarine 5.0mm/0.739ct Loose Stone
Sale price¥9,800
Vietnam Aquamarine 5.1mm/0.457ct Loose Stone
Sale price¥6,980
Brazilian Lazurite (Azurite) 0.052ct loose stone
Sale price¥16,800
Brazilian Lazurite (Azurite) 0.071ct loose stone
Sale price¥22,800
Brazilian Lazurite (Azurite) 0.083ct loose stone
Sale price¥24,800
Montana Sapphire 0.416ct Loose (Bi-Color Sapphire)
Sale price¥12,800
Montana Sapphire 0.458ct Loose (Bi-Color Sapphire)
Sale price¥14,800
Afghanistan Hackmanite 0.111ct loose stone
Sale price¥6,980
Tanzanian Kornerupine 0.272ct loose stone
Sale price¥22,800
Tanzanian Kornerupine 0.264ct loose stone
Sale price¥29,800
Madagascar Pezzottaite 4mm/0.242ct loose stone
Sale price¥8,800
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.
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.