Bicolor sapphire 0.225ct loose
Sale price¥15,800
Madagascar Petzotite Cat's Eye 0.323ct Loose Stone
Sale price¥22,800
Brazilian Green Tourmaline 4.1mm/0.259ct Loose Stone
Sale price¥12,800
Nigerian Morganite 0.349ct loose stone
Sale price¥8,800
Nigerian Morganite 0.381ct loose stone
Sale price¥5,980
Madagascar Petzotite Cat's Eye 0.393ct Loose Stone
Sale price¥29,800
Myanmar Purple Spinel 0.311ct Loose Stone
Sale price¥8,800
Madagascar pink sapphire 0.486ct loose stone
Sale price¥12,800
Blue beryl (Macis beryl) 0.172ct loose stone
Sale price¥8,800
Yellow sapphire from Sri Lanka 0.375ct loose
Sale price¥12,800
Madagascar sapphire 0.206ct loose stone
Sale price¥12,800
Madagascar Yellow Sapphire 0.493ct Loose
Sale price¥9,800
Canadian Shortite 0.423ct Loose Stone, Japan-Germany Mirror
Sale price¥69,800
South African diamond rough (sawable) 0.083ct rough
Sale price¥32,800
Sri Lankan Yellow Sapphire 0.297ct Loose
Sale price¥8,800
Tanzania Peristerite 0.461ct loose stone
Sale price¥9,800
Brazilian Alexandrite 0.052ct loose stone
Sale price¥9,800
South African diamond rough (sawable) 0.087ct rough
Sale price¥34,800
Madagascar pink sapphire 0.466ct loose stone
Sale price¥12,800
Colombian emerald 0.126ct loose stone
Sale price¥15,800
Colombian emerald 3.7mm/0.207ct loose stone
Sale price¥22,800
Tanzanite from Tanzania 0.432ct loose stone
Sale price¥9,800
Brazilian Alexandrite 2.9mm/0.123ct loose stone
Sale price¥29,800
Madagascar Purple Sapphire 0.311ct Loose Stone
Sale price¥9,800
Brazilian Paraiba Tourmaline in Quartz 0.295ct Loose Stone
Sale price¥14,800
Madagascar White Sapphire 0.485ct Loose
Sale price¥19,800
Madagascar pink sapphire 0.284ct loose stone
Sale price¥12,800
Brazilian Euclase 0.216ct Loose Stone
Sale price¥25,800
Tanzanite from Tanzania 0.269ct loose stone
Sale price¥9,800
Tanzanian Kornerupine 0.392ct loose stone
Sale price¥35,800
Tanzanian Kornerupine 0.172ct loose stone
Sale price¥18,800
Sri Lankan White Sapphire 4.0mm/0.242ct Loose Stone
Sale price¥12,800
American Red Beryl 0.140ct Loose
Sale price¥29,800
American Benitoite 0.083ct loose stone
Sale price¥22,800
American Benitoite 0.077ct loose stone
Sale price¥25,800
American Benitoite 0.067ct loose stone
Sale price¥19,800
Russian Demantoid Garnet 2.5mm/0.111ct Loose Stone
Sale price¥18,800
American Benitoite 0.286ct loose stone
Sale price¥158,000
Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.170ct Loose
Sale price¥17,800
Afghanistan Bicolor Tourmaline 0.471ct Loose Stone
Sale price¥9,800
Pezzottite from Madagascar 0.158ct loose
Sale price¥9,800
Madagascar Pezzottaite 0.177ct loose stone
Sale price¥11,000
Brazilian Alexandrite 0.135ct loose stone
Sale price¥35,800
Brazilian Alexandrite 0.072ct Loose Stone JTL Catalog
Sale price¥12,800
Diamond (cabochon cut) 0.247ct loose (VS-SI class equivalent)
Sale price¥39,800
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.