1.953ct Bicolor Sphalerite from Spain
Sale price¥25,800
Zimbabwean Apatite (UV type) 0.585ct loose stone
Sale price¥12,800
Mexican Fire Opal 0.356ct Loose (Faceted Cut)
Sale price¥9,800
Tanzanite from Tanzania 0.492ct loose stone
Sale price¥14,800
Tanzania Color Change Garnet 0.789ct Loose Stone
Sale price¥9,800
Myanmar pink spinel 0.520ct loose stone
Sale price¥12,800
Goshenite 0.306ct loose stone
Sale price¥6,980
Tanzanian Kornerupine 0.453ct loose stone
Sale price¥24,800
Tanzanite from Tanzania 1.250ct loose stone
Sale price¥22,800
Brazilian bicolor tourmaline 0.502ct loose stone
Sale price¥12,800
Tanzanian Kornerupine 0.416ct loose stone
Sale price¥8,800
Nigerian Aventurine Aquamarine 0.471ct Loose Stone
Sale price¥8,800
Violet Sapphire 4.3mm/0.328ct Loose
Sale price¥15,800
Pink sapphire 4.5mm/0.390ct loose stone
Sale price¥15,800
Brazilian Paraiba Tourmaline 0.759ct rough stone
Sale price¥45,800
Pakistani Lazurite (Azurite) 0.375ct loose stone
Sale price¥59,800
Manganotantalite 0.736ct loose stone from Japan and Germany
Sale price¥158,000
Colombian Mica in Emerald 4.6mm/0.210ct Loose Stone
Sale price¥12,800
Colombian Trapiche Emerald 0.416ct Loose
Sale price¥22,800
Colombian Trapiche Emerald 0.372ct Loose
Sale price¥19,800
Tanzanite from Tanzania 0.262ct loose stone
Sale price¥8,800
Canary Yellow Tourmaline from Mozambique 0.223ct loose stone
Sale price¥8,800
Tanzania Purple Zoisite Rough Stone 1.160ct
Sale price¥8,800
Colombian Trapiche Emerald 0.260ct Loose
Sale price¥14,800
Zimbabwean Blue Apatite (UV type) 1.056ct loose stone
Sale price¥15,800
Sri Lankan glass body (sapphire crystal) 4.126ct rough stone
Sale price¥8,800
Oregon Sunstone from the United States 0.292ct loose stone
Sale price¥8,800
Synthetic Alexandrite 0.578ct loose stone
Sale price¥12,800
Synthetic Alexandrite 0.841ct loose stone
Sale price¥15,800
Tanzanite from Tanzania 0.491ct loose stone
Sale price¥8,800
Tanzanite from Tanzania 0.466ct loose stone
Sale price¥8,800
Tanzania Bicolor Zoisite 0.216ct Loose Stone
Sale price¥3,980
Tanzania Bicolor Zoisite 4.1mm/0.313ct Loose Stone
Sale price¥5,980
Tanzania Bicolor Zoisite 0.278ct Loose Stone
Sale price¥4,980
Tanzania Bicolor Zoisite 4mm/0.305ct Loose Stone
Sale price¥6,980
Tanzanian Almandine Garnet 1.103ct Loose Stone
Sale price¥9,800
Mozambique Aquamarine 4.9mm/0.463ct Loose Stone
Sale price¥9,800
Tanzanian Grape Garnet 0.785ct Loose Stone
Sale price¥9,800
Vietnam Aquamarine 5.0mm/0.739ct Loose Stone
Sale price¥9,800
Brazilian Euclase 0.213ct loose stone (bicolor Euclase)
Sale price¥15,800
American Benitoite 4.8mm/0.396ct Loose Stone by Nikkei
Sale price¥298,000
Purple zoisite from Tanzania 1.103ct loose Japanese German edition
Sale price¥98,000
Brazilian Euclase 0.695ct Loose Stone
Sale price¥18,800
Tanzanian Lavender Tanzanite 0.498ct Loose Stone
Sale price¥14,800
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.