Tanzanian bicolor sapphire 0.923ct loose stone
Sale price¥25,800
Tanzanian bicolor sapphire 0.571ct loose stone
Sale price¥15,800
Tanzanian bicolor sapphire 0.623ct loose stone
Sale price¥16,800
Brazilian Medusa Quartz (Paraiba Quartz) 2.147ct loose stone
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 2.117ct loose stone
Sale price¥6,980
Brazilian alexandrite 0.145ct loose
Sale price¥35,800
Brazilian Alexandrite 2.9mm/0.123ct loose stone
Sale price¥29,800
Madagascar Purple Sapphire 0.311ct Loose Stone
Sale price¥9,800
Brazilian Paraiba Tourmaline in Quartz 0.295ct Loose Stone
Sale price¥14,800
Tanzanite from Tanzania 0.469ct loose stone
Sale price¥14,800
Madagascar Blue Sapphire 4.0mm/0.326ct Loose
Sale price¥11,000
Madagascar White Sapphire 0.485ct Loose
Sale price¥19,800
Madagascar pink sapphire 0.284ct loose stone
Sale price¥12,800
Brazilian bicolor tourmaline 0.891ct loose stone
Sale price¥9,800
Diamond rough (sawable) 0.101ct rough (with trigon)
Sale price¥22,800
Brazilian Euclase 0.216ct Loose Stone
Sale price¥25,800
Tanzanite from Tanzania 0.269ct loose stone
Sale price¥9,800
Sri Lankan Blue Spinel 0.519ct Loose Stone
Sale price¥12,800
Tanzanian Kornerupine 0.392ct loose stone
Sale price¥35,800
Tanzanian Kornerupine 0.172ct loose stone
Sale price¥18,800
YAG (Yttrium Aluminum Garnet) 2.861ct loose stone
Sale price¥25,800
Sri Lankan White Sapphire 4.0mm/0.242ct Loose Stone
Sale price¥12,800
Sri Lankan Andalusite 0.750ct loose stone
Sale price¥12,800
Oregon Sunstone from the United States 1.455ct loose stone
Sale price¥15,800
American Red Beryl 0.140ct Loose
Sale price¥29,800
Bicolor Fluorite 6.210ct Loose
Sale price¥9,800
American Benitoite 0.083ct loose stone
Sale price¥22,800
American Benitoite 0.077ct loose stone
Sale price¥25,800
American Benitoite 0.067ct loose stone
Sale price¥19,800
Russian Demantoid Garnet (Horsetail Recognized) 5.2mm/0.661ct Loose Stone
Sale price¥198,000
Brazilian Swiss Blue Topaz 17.410ct Loose
Sale price¥27,800
Brazilian Swiss Blue Topaz 11.536ct Loose
Sale price¥14,800
Brazilian Swiss Blue Topaz 10.958ct Loose
Sale price¥14,800
Oregon Sunstone from the United States 0.554ct loose stone
Sale price¥7,980
Brazilian Rainbow Scapolite 0.938ct Loose Stone
Sale price¥8,800
Russian Demantoid Garnet 2.5mm/0.111ct Loose Stone
Sale price¥18,800
Nepalese Kyanite 0.793ct loose stone
Sale price¥6,980
Brazilian Limonite in Beryl 2.975ct loose stone
Sale price¥5,980
Madagascar sphene 1.751ct loose stone
Sale price¥19,800
Oregon Sunstone from the United States 1.198ct loose stone
Sale price¥8,800
American Benitoite 0.286ct loose stone
Sale price¥158,000
Tanzania Bicolor Zoisite 2.603ct Loose Stone
Sale price¥88,800
Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.170ct Loose
Sale price¥17,800
Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.160ct Loose
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.