Oval Cut
Sri Lankan Goethite Topaz 4.992ct Loose Stone
Sale price¥14,800
Green tourmaline 1.190ct loose stone
Sale price¥98,000
Tanzanite from Tanzania 1.140ct loose stone
Sale price¥39,800
Tanzanite from Tanzania 1.577ct loose stone
Sale price¥49,800
Tanzanite from Tanzania 1.162ct loose stone
Sale price¥39,800
Tanzanite from Tanzania 0.767ct loose stone
Sale price¥29,800
Madagascar sphene 4.161ct loose stone
Sale price¥69,800
Brazilian Green Tourmaline 1.333ct Loose Stone
Sale price¥49,800
Brazilian Green Tourmaline 0.935ct Loose Stone
Sale price¥45,800
Brazilian Green Tourmaline 1.193ct Loose Stone
Sale price¥49,800
Brazilian Green Tourmaline 11.453ct Loose Stone
Sale price¥158,000
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.365ct Loose Stone
Sale price¥18,800
Brazilian Green Tourmaline 4.374ct Loose Stone
Sale price¥98,000
Tanzanite from Tanzania 6.006ct loose stone
Sale price¥228,000
Madagascar Grandidierite 0.521ct loose stone
Sale price¥128,000
Brazilian parti-color tourmaline 2.702ct loose stone
Sale price¥69,800
Brazilian rhodonite 3.224ct loose stone
Sale price¥98,000
Australian black opal 9.709ct loose stone
Sale price¥158,000
Brazilian Paraiba Tourmaline 0.211ct loose stone
Sale price¥49,800
Colombian pyrite-mica emerald 0.901ct loose stone
Sale price¥45,800
Brazilian Rubellite 1.027ct Loose Stone
Sale price¥69,800
Paraiba tourmaline from Brazil 0.047ct loose
Sale price¥29,800
Brazilian Paraiba Tourmaline 0.068ct loose stone
Sale price¥39,800
Paraiba tourmaline from Brazil 0.071ct loose
Sale price¥39,800
Paraiba tourmaline from Brazil 0.052ct loose
Sale price¥29,800
Paraiba tourmaline from Brazil 0.051ct loose
Sale price¥29,800
Paraiba tourmaline from Brazil 0.048ct loose
Sale price¥29,800
Nigerian Cobalt Garnite 0.284ct Loose Stone JTL Catalog
Sale price¥39,800
Nigerian Cobalt Garnite 0.242ct Loose Stone JTL Catalog
Sale price¥39,800
Mozambique rubellite 2.752ct loose stone
Sale price¥69,800
Mozambique Rubellite 2.141ct Loose Stone
Sale price¥69,800
Madagascar Padparadscha Sapphire 0.208ct Loose DGL
Sale price¥34,800
Grandidierite from Madagascar 0.264ct loose stone
Sale price¥88,800
South African Sugilite 1.330ct loose stone
Sale price¥22,800
Spanish Sphalerite 2.726ct loose stone
Sale price¥39,800
Tanzania Color Change Garnet 0.789ct Loose Stone
Sale price¥9,800
Silky Sapphire from Sri Lanka 1.716ct loose stone
Sale price¥14,800
Tanzanian Kornerupine 0.453ct loose stone
Sale price¥24,800
Tanzanian Mint Garnet 1.276ct Loose Stone
Sale price¥69,800
American Red Beryl 0.106ct Loose
Sale price¥24,800
Brazilian Alexandrite 0.125ct loose stone
Sale price¥29,800
Pigeon Blood Ruby 0.38ct Loose AIGS
Sale price¥59,800
Brazilian pink tourmaline 1.458ct loose stone
Sale price¥39,800
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.