Tanzanian Kornerupine 0.172ct loose stone
Sale price¥18,800
Paraiba tourmaline from Brazil 0.057ct loose
Sale price¥22,800
Paraiba Tourmaline from Mozambique 0.153ct loose stone
Sale price¥9,800
Paraiba Tourmaline from Mozambique 0.154ct loose stone
Sale price¥9,800
Tanzanian Kornerupine 0.213ct loose stone
Sale price¥12,800
Madagascar Blue Sapphire 0.302ct Loose
Sale price¥16,800
Madagascar pink sapphire 0.346ct loose stone
Sale price¥16,800
Paraiba tourmaline from Brazil 0.071ct loose
Sale price¥25,800
Unheated Silky Pink Sapphire from Vietnam 2.4mm/0.078ct Loose
Sale price¥4,980
German Awinite 0.064ct loose stone
Sale price¥18,800
Russian Demantoid Garnet Cat's Eye (Horsetail Recognized) 0.200ct Loose
Sale price¥29,800
Madagascar Bicolor Sapphire 0.296ct Loose
Sale price¥7,980
Colombian mint color emerald 0.294ct loose stone
Sale price¥9,800
Colombian mint color emerald 0.158ct loose stone
Sale price¥5,980
Colombian mint color emerald 0.136ct loose stone
Sale price¥6,980
Colombian mint color emerald 0.155ct loose stone
Sale price¥7,980
Colombian emerald 0.202ct rough stone
Sale price¥9,800
Colombian emerald 0.443ct rough stone
Sale price¥9,800
Unheated Brazilian Paraiba Tourmaline 0.110ct Loose Stone AIGS
Sale price¥258,000
Zimbabwean Euclase 0.088ct loose stone
Sale price¥69,800
Benitoite 0.272ct loose stone (emerald cut)
Sale price¥248,000
Colombian emerald 0.145ct loose stone with precious stone
Sale price¥39,800
Colombian emerald 0.111ct loose stone with precious stone
Sale price¥29,800
Namibian Jeremejevite 0.261ct loose stone
Sale price¥69,800
Brazilian Bicolor Euclase 2.4mm/0.051ct Loose Stone
Sale price¥22,800
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
Paraiba Tourmaline from Mozambique 0.234ct loose stone
Sale price¥12,800
German Awinite 0.070ct loose stone
Sale price¥32,800
German Awinite 0.056ct loose stone
Sale price¥25,800
Brazilian Alexandrite 0.066ct loose stone
Sale price¥12,800
Brazilian Aquamarine 0.874ct Loose Stone (Phantom Cut)
Sale price¥8,800
Colombian Trapiche Emerald (Reverse Trapiche) 0.073ct Rough Stone
Sale price¥8,800
Colombian trapiche emerald (reverse trapiche) 0.078ct rough stone
Sale price¥7,980
Colombian Trapiche Emerald (Reverse Trapiche) 0.111ct Rough Stone
Sale price¥12,800
Colombian emerald with pyrite 0.248ct rough stone
Sale price¥12,800
Russian Demantoid Garnet (Horsetail) 2.9mm/0.194ct Loose Stone
Sale price¥29,800
Kenyan Tsavorite 0.379ct loose stone
Sale price¥35,800
Bicolor Zoisite 0.450ct Loose Stone (Bicolor Tanzanite)
Sale price¥18,800
Chameleon Diamond Green Diamond 0.122ct Loose (FANCY GRAY GREEN, SI2)
Sale price¥69,800
Vietnam unheated silky pink sapphire 0.178ct loose stone
Sale price¥5,980
Brazilian Imperial Topaz 0.153ct Loose
Sale price¥5,980
Green tourmaline 0.090ct loose stone
Sale price¥6,980
Bicolor Benitoite 0.164ct loose stone
Sale price¥19,800
Benitoite 0.084ct loose stone
Sale price¥12,800
American Red Beryl 0.109ct Loose
Sale price¥29,800
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.