Sapphire 0.461ct loose stone
Sale price¥15,800
Spanish Andalusite 0.440ct loose stone
Sale price¥8,800
Spanish Andalusite 0.435ct loose stone
Sale price¥8,800
Colombian emerald 0.345ct loose stone (silky type)
Sale price¥15,800
Unheated Mozambique Ruby 2.7mm/0.135ct Loose
Sale price¥19,800
Colombian Trapiche Emerald 0.317ct Rough Stone
Sale price¥19,800
Colombian Trapiche emerald 0.424ct rough stone
Sale price¥39,800
Colombian Trapiche emerald 0.418ct rough stone
Sale price¥39,800
Benitoite 0.154ct loose
Sale price¥118,000
Rainbow Quartz (Iridescent Quartz) 0.256ct Loose Stone, Japan-Germany
Sale price¥98,000
Brazilian Paraiba Tourmaline 0.405ct loose stone (CuO2.7% CuO2.2%) GIA
Sale price¥198,000
Colombian trapiche emerald (reverse trapiche) 0.152ct rough stone
Sale price¥17,800
Colombian Trapiche Emerald (Reverse Trapiche) 0.111ct Rough Stone
Sale price¥12,800
Colombian Trapiche Emerald (Reverse Trapiche) 0.183ct Rough Stone
Sale price¥18,800
Australian black opal 0.407ct loose stone
Sale price¥8,800
Colombian emerald with pyrite 0.248ct rough stone
Sale price¥12,800
Ruby 0.289ct loose stone by Takakikyo
Sale price¥12,800
Pigeon Blood Ruby 0.295ct Loose AIGS
Sale price¥49,800
Colombian oil-free emerald 0.310ct loose stone
Sale price¥298,000
Brazilian Dumortierite in Quartz 0.495ct loose stone
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.387ct loose stone
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.432ct Loose Stone
Sale price¥6,980
Madagascar Pezzottaite 0.229ct loose stone
Sale price¥19,800
Russian Demantoid Garnet (Horsetail) 2.9mm/0.194ct Loose Stone
Sale price¥29,800
Kenyan Tsavorite 0.379ct loose stone
Sale price¥35,800
Tanzanite 4.8mm/0.494ct loose stone
Sale price¥15,800
Bicolor Zoisite 0.450ct Loose Stone (Bicolor Tanzanite)
Sale price¥18,800
Yellow Zircon 0.268ct Loose
Sale price¥9,800
Myanmar Trapiche Ruby 0.250ct Loose
Sale price¥15,800
Myanmar Trapiche Ruby 0.342ct Loose
Sale price¥15,800
Mexican Opal 0.499ct Loose
Sale price¥5,980
Green tourmaline 0.457ct loose stone
Sale price¥9,800
Afghanistan Hackmanite 0.418ct loose stone
Sale price¥12,800
Salt and pepper diamond 0.446ct loose
Sale price¥39,800
Australian Opal 0.315ct Loose
Sale price¥5,980
Australian Opal 0.440ct Loose
Sale price¥8,800
Myanmar Leuco Garnet 0.324ct loose stone
Sale price¥39,800
[Rouge cut] Rhodolite garnet 0.410ct loose stone
Sale price¥8,800
Cambodian Blue Zircon 0.348ct Loose Stone
Sale price¥6,980
Golden Iolite (Cordierite) 0.321ct loose stone
Sale price¥12,800
Vietnam unheated silky pink sapphire 0.178ct loose stone
Sale price¥5,980
Green Sapphire 0.299ct Loose (Silky Sapphire)
Sale price¥3,980
Brazilian Imperial Topaz 0.413ct Loose Stone
Sale price¥11,000
Brazilian Imperial Topaz 0.402ct Loose Stone
Sale price¥11,000
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.
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.