Brazilian Dumortierite in Quartz 1.276ct loose stone
Sale price¥6,980
Brazilian Rubellite 2.588ct Loose Stone
Sale price¥69,800
Brazilian Rubellite 2.439ct loose stone
Sale price¥69,800
Tanzanite 1.540ct loose stone
Sale price¥49,800
Tanzanite 1.055ct loose stone
Sale price¥29,800
Tanzanite 1.458ct loose stone
Sale price¥39,800
Tanzanite Zoisite 0.435ct loose stone
Sale price¥12,800
Mongolian color change andesine 1.486ct loose stone
Sale price¥18,800
Tibetan Andesine 5.2mm/0.453ct Loose Stone
Sale price¥4,980
Chinese Fluorite 16.590ct Loose Patch
Sale price¥5,980
Brazilian Amphibole in Quartz 32.070ct Loose Patch
Sale price¥6,980
Brazilian tourmaline cat's eye 0.810ct loose stone
Sale price¥2,980
Mozambique pink tourmaline 1.006ct loose stone
Sale price¥8,800
Labradorite (Spectrolite) from Finland 56.209ct loose
Sale price¥15,800
Spanish Sphalerite 4.445ct loose stone
Sale price¥98,000
Indian Moss Agate 19.271ct Loose Stone (Leaf Carving)
Sale price¥6,980
American oil-free red beryl 0.21ct loose GIA
Sale price¥188,000
Myanmar Musgravite 0.351ct Loose Stone Japan-Germany
Sale price¥188,000
Mexican Fire Opal 3.160ct Loose
Sale price¥29,800
Mexican Fire Opal (Faceted Cut) 0.934ct Loose
Sale price¥25,800
American Red Beryl 0.104ct Loose
Sale price¥15,800
Nigerian Blue Garnite 0.794ct Loose Stone, Japan-Germany Exchange
Sale price¥79,800
Brazilian Alexandrite 0.097ct loose stone
Sale price¥18,800
Labradorite (Spectrolite) from Finland 56.702ct loose
Sale price¥14,800
Brazilian Green Tourmaline 0.840ct Loose (Pixel Cut)
Sale price¥8,800
Montana Sapphire 4mm/0.330ct Loose (Yellow Sapphire)
Sale price¥7,980
Colombian Euclase 1.314ct loose stone
Sale price¥39,800
Mozambique Rhodolite Garnet 1.418ct Loose Stone
Sale price¥12,800
Brazilian Lepidocrocite in Quartz 9.0mm/2.735ct Loose Stone
Sale price¥14,800
Mozambique Rhodolite Garnet 1.146ct Loose Stone
Sale price¥12,800
Russian Diopside 1.506ct Loose Stone
Sale price¥29,800
Ruby 0.258ct loose
Sale price¥18,800
Pyrope Almandine Garnet 2.514ct Loose Stone
Sale price¥29,800
Synthetic Alexandrite 0.570ct loose stone
Sale price¥18,800
Kasharai Amethyst 0.430ct Loose
Sale price¥12,800
Moloxite (Green Apatite) from Madagascar 4.087ct Loose Stone
Sale price¥39,800
Australian black opal 0.544ct loose stone
Sale price¥18,800
Tanzania Peristerite 1.150ct Loose Stone (Royal Blue Moonstone)
Sale price¥12,800
Brazilian Sky Blue Topaz (untreated) 2.560ct loose stone
Sale price¥12,800
Oregon Sunstone from the United States 1.930ct loose stone
Sale price¥18,800
Tanzania Peristerite 0.911ct Loose Stone (Royal Blue Moonstone)
Sale price¥15,800
Sri Lankan Yellow Sapphire 0.350ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.474ct Loose
Sale price¥15,800
Brazilian rutilated quartz (rutilated quartz) 7.741ct loose stone
Sale price¥15,800
American Red Beryl 0.254ct Loose
Sale price¥59,800
American Red Beryl 0.260ct Loose
Sale price¥69,800
Brazilian unheated pink imperial topaz (sherry pink) 0.931ct loose stone
Sale price¥98,000
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.