Brazilian unheated pink imperial topaz (sherry pink) 0.254ct loose stone
Sale price¥14,800
Sri Lankan Violet Spinel 0.592ct Loose
Sale price¥8,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.794ct Loose Stone
Sale price¥15,800
Moldavite from former Czechoslovakia 0.077ct loose stone
Sale price¥6,980
Sri Lankan bicolor sapphire 0.484ct loose stone
Sale price¥12,800
Dominican Republic Conch Pearl 0.818ct Loose
Sale price¥8,800
Colombian pyrite-bearing euclase 23.430ct rough stone by Takakikyo
Sale price¥19,800
Colombian pyrite-bearing euclase 37.340ct rough stone by Takakikyo
Sale price¥12,800
[Takeshi Yamamoto] Bicolor Smoky Quartz 10.674ct Loose Stone
Sale price¥39,800
Zimbabwe bicolor euclase 0.205ct loose stone
Sale price¥98,000
Dominican Republic Conch Pearl 1.990ct Loose (with flame pattern)
Sale price¥29,800
Spanish Sphalerite 11mm/7.286ct loose stone
Sale price¥98,000
Brazilian pyrite in quartz 57.230ct loose stone
Sale price¥25,800
Kenyan gold sheen sapphire 2.3mm/0.079ct loose
Sale price¥6,980
Amazon Green Opal 7mm/0.88ct Loose
Sale price¥7,980
Kenyan Gold Sheen Sapphire 2.2mm/0.080ct Loose
Sale price¥8,800
Nigerian Cobalt Garnite 0.216ct Loose Stone, Japan-Germany Exchange
Sale price¥45,800
Paraiba tourmaline from Brazil 0.217ct loose (CuO:1.5%, MnO:0.5%)
Sale price¥39,800
American Axinite 2.10ct loose stone
Sale price¥9,800
American Axinite 1.630ct loose stone
Sale price¥7,980
Zimbabwe bicolor euclase rough stone 0.960ct
Sale price¥39,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 6.020ct Loose Stone
Sale price¥9,800
Colombian emerald 10.940ct rough stone
Sale price¥69,800
Kenyan gold sheen sapphire 2.4mm/0.086ct loose
Sale price¥9,800
Kenyan Gold Sheen Sapphire 2.4mm/0.092ct Loose Stone
Sale price¥8,800
Madagascar Bicolor Sapphire 0.626ct Loose
Sale price¥29,800
Congo hemimorphite 9.849ct loose stone
Sale price¥49,800
Colombian mica in emerald 1.940ct loose
Sale price¥49,800
Ethiopian Opal 1.521ct Loose
Sale price¥3,980
Ethiopian Opal 1.014ct Loose
Sale price¥3,980
Brazilian cat's eye emerald 4.070ct loose stone
Sale price¥198,000
Tibetan Andesine 2.450ct Loose Stone
Sale price¥12,800
Myanmar Musgravite/Spinel 8.005ct Loose Stone Japan-Germany
Sale price¥98,000
Tibetan Andesine 0.720ct Loose Stone
Sale price¥5,980
Mexican Danburite 6.780ct loose stone (light pink)
Sale price¥25,800
Myanmar Musgravite 0.214ct Loose Stone Nikko Kan
Sale price¥258,000
Burmese Ruby 3.725ct Loose GIA & Chuho
Sale price¥198,000
Thai Pigeon Blood Ruby 0.380ct Loose AIGS
Sale price¥59,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 4.670ct Loose Stone
Sale price¥18,800
Brazilian Paraiba tourmaline 0.215ct loose (CuO:1.1%, MnO:3.3%)
Sale price¥55,800
Australian Iron Opal 17.450ct Loose
Sale price¥12,800
Kunzite from Afghanistan 8.609ct loose stone
Sale price¥14,800
Spanish Andalusite 0.74ct loose stone
Sale price¥6,980
Madagascar Labradorite 0.931ct 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.
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.