Brazilian Quartz in Quartz 10.349ct Loose Stone
Sale price¥15,800
Brazilian bicolor tourmaline cat's eye 22.056ct loose stone
Sale price¥198,000
Congo Bicolor Tourmaline 3.429ct Loose
Sale price¥128,000
Mozambique Rubellite 1.706ct Loose Stone
Sale price¥39,800
Oregon Sunstone from the United States 0.372ct loose stone
Sale price¥12,800
Andesine Labradorite (also known as Blue Moonstone) 1.096ct loose stone
Sale price¥45,800
Andesine Labradorite (also known as Blue Moonstone) 0.949ct loose stone
Sale price¥45,800
Kenyan Gold Sheen Sapphire 4mm/0.438ct Loose
Sale price¥55,800
Oregon Sunstone from the United States 5.0mm/0.460ct loose stone
Sale price¥19,800
Diamond (cabochon cut) 0.183ct loose
Sale price¥24,800
Diamond (cabochon cut) 0.366ct loose
Sale price¥59,800
Argentine Inca Rose 15.960ct loose stone
Sale price¥12,800
Argentine Inca Rose 20.650ct loose stone
Sale price¥15,800
Argentine Inca Rose 15.190ct loose stone
Sale price¥12,800
Tanzanian Rhodolite Garnet 10.608ct Loose Stone
Sale price¥98,000
Mozambique Aquamarine 3.301ct Loose Stone
Sale price¥59,800
Brazilian Paraiba Tourmaline in Quartz 2.674ct loose stone
Sale price¥54,800
Brazilian Paraiba Tourmaline in Quartz 2.827ct loose stone
Sale price¥49,800
Brazilian Paraiba Tourmaline in Quartz 3.049ct loose stone
Sale price¥49,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.284ct Loose Stone
Sale price¥22,800
Brazilian Paraiba Tourmaline in Quartz 1.146ct Loose Stone
Sale price¥29,800
Brazilian Paraiba Tourmaline in Quartz 8.0mm/1.287ct Loose Stone
Sale price¥29,800
Brazilian Paraiba Tourmaline in Quartz 7.9mm/1.314ct Loose Stone
Sale price¥29,800
Brazilian Limonite in Topaz 3.399ct loose stone
Sale price¥8,800
Colombian Trapiche Emerald 0.629ct Loose
Sale price¥34,800
Brazilian Medusa Quartz (Paraiba Quartz) 7.250ct Loose
Sale price¥54,800
Brazilian Medusa Quartz (Paraiba Quartz) 2.089ct loose stone
Sale price¥16,800
Kenyan Gold Sheen Sapphire 3.6mm/0.302ct Loose Stone
Sale price¥35,800
Kenyan Gold Sheen Sapphire 3.5mm/0.273ct Loose Stone
Sale price¥22,800
Kenyan Gold Sheen Sapphire 3.5mm/0.264ct Loose Stone
Sale price¥22,800
Ethiopian Opal 1.433ct Loose
Sale price¥3,980
Brazilian Bicolor Pink Euclase 0.236ct Loose Stone, Japan-Germany
Sale price¥128,000
YAG (Yttrium Aluminum Garnet) 7.1mm/1.709ct loose stone
Sale price¥12,800
Tibetan bicolor andesine 1.542ct loose stone
Sale price¥14,800
Indian Cavansite 1.717ct loose stone
Sale price¥8,800
Myanmar Taaffeite 0.650ct Loose GIT
Sale price¥39,800
Synthetic Moissanite 12.5mm/6.579ct Loose Stone
Sale price¥29,800
Colombian Trapiche Emerald 1.494ct Loose
Sale price¥69,800
Brazilian Imperial Topaz 0.764ct Loose Stone
Sale price¥19,800
Brazilian bicolor tourmaline 0.845ct loose stone
Sale price¥15,800
Myanmar Podretteite 0.834ct loose stone
Sale price¥298,000
Non-Oil Emerald 1.030ct Loose Gübelin Gübelin Certificate
Sale price¥698,000
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.