Silky pink spinel from Mozambique 0.610ct loose
Sale price¥29,800
Bicolor star sapphire from Myanmar 1.190ct loose (pink sapphire)
Sale price¥29,800
Sierra Leone sapphire 1.210ct loose
Sale price¥9,800
Sierra Leone sapphire 1.470ct loose
Sale price¥14,800
Leuko garnet from Myanmar 0.294ct loose
Sale price¥19,800
Hackmanite 0.506ct loose
Sale price¥49,800
Taaffeite 0.241ct loose Japanese and German
Sale price¥49,800
Paraiba tourmaline from Brazil 0.205ct loose (CuO:0.8%, MnO:3.1%)
Sale price¥45,800
Paraiba tourmaline from Brazil 0.167ct loose (CuO:1.6%, MnO:3.0%)
Sale price¥35,800
Mexican Danburite 1.859ct loose stone (phantom cut)
Sale price¥14,800
Mexican Danburite 1.981ct loose stone (phantom cut)
Sale price¥14,800
Paraiba tourmaline from Brazil 0.086ct loose (CuO:1.5%, MnO:2.3%)
Sale price¥19,800
Paraiba tourmaline from Brazil 0.226ct loose (CuO:0.7%, MnO:3.6%)
Sale price¥49,800
Paraiba tourmaline from Brazil 0.204ct loose
Sale price¥36,800
Paraiba tourmaline from Brazil 0.239ct loose
Sale price¥59,800
Paraiba tourmaline from Brazil 0.232ct loose
Sale price¥58,800
Paraiba tourmaline from Brazil 0.240ct loose (CuO:0.7%, MnO:3.8%)
Sale price¥59,800
Andesine 0.502ct loose stone (pixel cut)
Sale price¥6,980
Andesine 0.540ct loose stone
Sale price¥4,980
Tanzanian Clinozoisite 0.950ct Loose Stone (Phantom Cut)
Sale price¥5,980
Tanzanian Clinozoisite 0.710ct Loose Stone (Phantom Cut)
Sale price¥5,980
Tanzanian Clinozoisite 0.560ct Loose Stone (Phantom Cut)
Sale price¥5,980
Spinel from Sri Lanka 0.800ct loose
Sale price¥9,800
Brazilian Pink Imperial Topaz 1.907ct Loose Japanese-German Edition
Sale price¥118,000
Russian demantoid garnet (horsetail recognized) 0.214ct loose
Sale price¥59,800
Brazilian Paraiba tourmaline 0.065ct loose (CuO:2.0%, MnO:2.6%)
Sale price¥25,800
Spinel from Sri Lanka 0.276ct loose
Sale price¥4,980
Colombian mica in emerald 1.314ct loose
Sale price¥39,800
Red beryl 0.173ct loose
Sale price¥29,800
Russian demantoid garnet (horsetail recognized) 4.2mm/0.336ct loose
Sale price¥98,000
Burmese spinel 0.950ct loose (buff top)
Sale price¥19,800
Sillimanite from Sri Lanka 1.586ct loose stone
Sale price¥12,800
American fluorite 0.842ct loose stone
Sale price¥3,980
Bicolor spinel 0.737ct loose
Sale price¥29,800
Mexican Opal 8mm/1.430ct Loose
Sale price¥39,800
Bicolor tourmaline 1.248ct loose
Sale price¥8,800
Bicolor tourmaline 1.097ct loose
Sale price¥6,980
Mexican Fire Opal 1.30ct Loose
Sale price¥6,980
Australian opal 14.837ct loose
Sale price¥118,000
Fluorite 16.786ct loose
Sale price¥9,800
Trapiche emerald 0.650ct loose (reverse trapiche)
Sale price¥8,800
Hemimorphite 29.778ct loose
Sale price¥98,000
Burmese bicolor spinel 0.849ct loose
Sale price¥39,800
Star sapphire 0.973ct loose
Sale price¥5,980
Mexican Danburite 1.515ct loose stone (phantom cut)
Sale price¥12,800
Mexican Danburite 1.612ct loose stone (phantom cut)
Sale price¥12,800
Bicolor tourmaline 3.080ct loose
Sale price¥14,800
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.