Mozambique Aquamarine 0.337ct Loose Stone
Sale price¥6,980
American Peridot 0.339ct Loose Stone
Sale price¥6,980
Colombian mint color emerald 0.294ct loose stone
Sale price¥9,800
Brazilian Paraiba Tourmaline 0.216ct loose stone (CuO:1.2%, MnO:2.7%)
Sale price¥69,800
Benitoite 0.231ct loose
Sale price¥220,000
Benitoite 0.272ct loose stone (emerald cut)
Sale price¥248,000
Pink diaspore 0.351ct loose stone
Sale price¥9,800
Ruby 0.242ct loose stone
Sale price¥14,800
Tanzanian Kornerupine 0.210ct loose stone
Sale price¥18,800
Tanzanian Kornerupine 0.220ct loose stone
Sale price¥15,800
Tanzanian Kornerupine 0.229ct loose stone
Sale price¥25,800
Tanzanian Kornerupine 0.201ct loose stone
Sale price¥25,800
Tanzanian Kornerupine 0.200ct Loose Stone
Sale price¥18,800
Sapphire 0.461ct loose stone
Sale price¥15,800
Andalusite 0.672ct loose
Sale price¥12,800
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
Colombian Trapiche emerald 0.424ct rough stone
Sale price¥39,800
Brazilian Paraiba Tourmaline 0.405ct loose stone (CuO2.7% CuO2.2%) GIA
Sale price¥198,000
Ruby 0.289ct loose stone by Takakikyo
Sale price¥12,800
Pigeon Blood Ruby 0.295ct Loose AIGS
Sale price¥49,800
Non-Oil Emerald 0.555ct Loose Stone by Nikkei
Sale price¥288,000
Madagascar Pezzottaite 0.229ct loose stone
Sale price¥19,800
Tanzanite 4.8mm/0.494ct loose stone
Sale price¥15,800
Namibian Hemimorphite 0.615ct Loose Stone
Sale price¥7,980
Golden Iolite (Cordierite) 0.321ct loose stone
Sale price¥12,800
Green Sapphire 0.299ct Loose (Silky Sapphire)
Sale price¥3,980
Brazilian Imperial Topaz 0.153ct Loose
Sale price¥5,980
Pink spinel 0.365ct loose stone
Sale price¥12,800
Sky blue topaz 0.428ct loose stone
Sale price¥5,980
Tanzanite 0.349ct loose
Sale price¥9,800
Bicolor Zoisite 0.302ct loose stone
Sale price¥8,800
Bicolor Zoisite 0.273ct loose stone
Sale price¥7,980
Tanzanite 0.328ct loose stone
Sale price¥8,800
Bicolor Zoisite 0.392ct loose stone
Sale price¥8,800
Bicolor tourmaline 0.423ct loose
Sale price¥12,800
Bicolor tourmaline 0.552ct loose
Sale price¥12,800
Lepidocrocite in Quartz 0.241ct Loose Stone
Sale price¥6,980
Lepidocrocite in Quartz 0.382ct Loose
Sale price¥6,980
Bicolor Benitoite 0.164ct loose stone
Sale price¥19,800
Benitoite 0.300ct loose stone (cabochon cut)
Sale price¥12,800
Benitoite 0.536ct loose stone (cabochon cut)
Sale price¥12,800
Benitoite 0.311ct loose stone (cabochon cut)
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.