Colombian emerald 0.381ct rough stone
Sale price¥12,800
Australian black opal 0.410ct loose stone
Sale price¥15,800
Australian black opal 0.977ct loose stone
Sale price¥29,800
Brazilian Morganite 3.929ct loose stone
Sale price¥19,800
Madagascar Bicolor Sphene 1.551ct Loose Stone
Sale price¥19,800
Colombian Trapiche Emerald (Reverse Trapiche) 0.183ct Rough Stone
Sale price¥18,800
Colombian Trapiche Emerald (Reverse Trapiche) 0.111ct Rough Stone
Sale price¥12,800
Colombian trapiche emerald (reverse trapiche) 0.152ct rough stone
Sale price¥17,800
Triplite 0.439ct loose stone
Sale price¥12,800
Additional charge for resizing: 16,000 yen
Sale price¥16,000
Pakistani Oil in Quartz 1.337ct Loose Stone (Moving Bubbles)
Sale price¥19,800
Cristobalite in Quartz 2.417ct Loose Stone
Sale price¥12,800
Benitoite 1.8mm/0.028ct loose stone (colorless benitoite)
Sale price¥14,800
Benitoite 1.8mm/0.025ct loose stone (colorless benitoite)
Sale price¥15,800
Benitoite 1.8mm/0.025ct loose stone (colorless benitoite)
Sale price¥12,800
Colombian Trapiche Emerald 0.317ct Rough Stone
Sale price¥19,800
Unheated Mozambique Ruby 2.7mm/0.135ct Loose
Sale price¥19,800
Brazilian Alexandrite 0.066ct loose stone
Sale price¥12,800
Brazilian Flower Quartz 6.582ct Loose Stone
Sale price¥16,800
Brazilian Flower Quartz 6.501ct Loose Stone
Sale price¥16,800
Brazilian Flower Quartz 7.144ct Loose Stone
Sale price¥17,800
Brazilian Flower Quartz 6.004ct Loose Stone
Sale price¥15,800
Brazilian Flower Quartz 6.928ct Loose Stone
Sale price¥17,800
Brazilian Flower Quartz 4.666ct Loose Stone
Sale price¥12,800
Brazilian Romanesite in Amethyst 7.083ct Loose Stone
Sale price¥18,800
Diamond 3.4mm/0.144ct loose stone (I, VS1, Good)
Sale price¥16,800
Australian Opal 1.170ct Loose
Sale price¥18,800
Triplite 0.383ct loose stone
Sale price¥12,800
Colombian emerald with pyrite 0.248ct rough stone
Sale price¥12,800
Colombian emerald 0.512ct loose stone (silky type)
Sale price¥14,800
Colombian emerald 0.345ct loose stone (silky type)
Sale price¥15,800
German Awinite 0.056ct loose stone
Sale price¥25,800
Vietnam unheated silky pink sapphire 0.580ct loose stone
Sale price¥18,800
Tibetan bicolor andesine 2.657ct loose stone
Sale price¥25,800
Almandine Garnet 1.255ct Loose Stone
Sale price¥14,800
Andalusite 0.672ct loose
Sale price¥12,800
Spodumene 9.730ct loose stone
Sale price¥29,800
Spodumene 9.001ct loose stone
Sale price¥29,800
Sapphire 0.461ct loose stone
Sale price¥15,800
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.