Custom Cut
Sri Lankan Yellow Sapphire 0.320ct Loose
Sale price¥15,800
Mexican Hyalite Opal 0.942ct Loose
Sale price¥9,800
[Takeshi Yamamoto] Brazilian Rock Crystal 12.725ct Loose
Sale price¥39,800
Triphylite (Color Change Type) 0.467ct Loose Stone with Certificate
Sale price¥49,800
Colombian Euclase 1.344ct loose stone
Sale price¥26,800
Colombian Euclase 1.408ct Loose Stone
Sale price¥24,800
Colombian Euclase 1.776ct loose stone
Sale price¥15,800
Brazilian Swiss Blue Topaz 1.042ct Loose Stone
Sale price¥9,800
Brazilian Swiss Blue Topaz 1.043ct Loose Stone
Sale price¥8,800
Colombian fluorite 6.327ct loose stone
Sale price¥25,800
Brazilian Green Spodumene 1.997ct Loose Stone
Sale price¥12,800
Madagascar Iolite 2.272ct loose stone
Sale price¥19,800
Nigerian Morganite 2.745ct loose stone
Sale price¥12,800
Ethiopian Sunstone 1.045ct Loose
Sale price¥15,800
Brazilian Green Spodumene 10mm/4.505ct Loose Stone
Sale price¥19,800
Brazilian Green Tourmaline 1.431ct Loose Stone
Sale price¥12,800
Brazilian Green Tourmaline 4.613ct Loose Stone
Sale price¥39,800
Mexican Hyalite Opal 0.664ct Loose
Sale price¥6,980
Mexican Hyalite Opal 3.917ct Loose
Sale price¥15,800
Mexican Hyalite Opal 1.554ct Loose
Sale price¥7,980
Mexican Hyalite Opal 1.687ct Loose
Sale price¥9,800
Brazilian Dumortierite in Quartz 3.188ct loose stone (faceted cut)
Sale price¥12,800
Brazilian Dumortierite in Quartz 1.284ct loose stone (faceted cut)
Sale price¥9,800
Synthetic Alexandrite 0.570ct loose stone
Sale price¥18,800
[Takeshi Yamamoto] Bicolor Smoky Quartz 10.674ct Loose Stone
Sale price¥39,800
[Takeshi Yamamoto] Brazilian Ametrine 29.930ct loose stone
Sale price¥79,800
Mexican Cantera Opal 14.458ct loose stone (faceted cut)
Sale price¥14,800
Synthetic Opal 2.026ct Loose
Sale price¥19,800
Montana Agate 6.534ct Loose Stone
Sale price¥6,980
Brazilian Dumortierite in Quartz 0.313ct loose stone (faceted cut)
Sale price¥6,980
Brazilian Dumortierite in Quartz 0.154ct loose stone (faceted cut)
Sale price¥9,800
Brazilian Green Spodumene 6.484ct Loose Stone
Sale price¥29,800
Brazilian Spodumene 3.200ct loose stone
Sale price¥16,800
Sapphire 0.328ct loose stone
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.209ct Loose
Sale price¥15,800
Sri Lankan Yellow Sapphire 0.318ct Loose
Sale price¥15,800
Sri Lankan Yellow Sapphire 0.349ct Loose
Sale price¥15,800
Oregon Sunstone from the United States 0.276ct loose stone
Sale price¥7,980
Brazilian Madeira Citrine 0.489ct Loose Stone
Sale price¥7,980
Nigerian Morganite 0.948ct loose stone
Sale price¥8,800
[Sakura Shape] Brazilian Green Tourmaline 6.7mm/1.057ct Loose Patch
Sale price¥39,800
Sunstone 0.418ct loose stone
Sale price¥5,980
Mexican Cantera Opal 3.167ct loose stone (faceted cut)
Sale price¥12,800
Mexican fire opal (faceted cut) 0.387ct loose stone
Sale price¥14,800
Sri Lankan Blue Sapphire 0.251ct Loose
Sale price¥12,800
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.
KARATZ's Initiatives and Social Contributions
We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.
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.