Bicolor Tanzanite 1.677ct rough stone
Sale price¥7,980
1.758 ct Ruby Loose Stone from Vietnam with Identification Report
Sale price¥49,800
Lavender quartz (scorolite) 1.130ct loose stone
Sale price¥5,980
South African Sugilite 7.3mm/1.034ct loose stone
Sale price¥14,800
Ethiopian Opal 1.694ct Loose
Sale price¥7,980
Synthetic Spinel 1.668ct Loose Stone (Synthetic Blue Spinel)
Sale price¥12,800
Lepidocrocite in quartz 1.087ct loose
Sale price¥5,980
Medusa Quartz (Paraiba Quartz) 1.855ct loose
Sale price¥18,800
Pink tourmaline 1.575ct loose
Sale price¥12,800
Tanzanian Rhodolite Garnet 5.9mm/1.084ct Loose
Sale price¥12,800
Spanish Sphalerite 6.2mm/1.320ct loose stone
Sale price¥12,800
Tanzanian Yellow Scapolite 1.780ct Loose
Sale price¥8,800
Mexican Cantera Opal 1.867 ct Loose Stone
Sale price¥12,800
Tanzanian Zoisite 1.290ct Loose Stone with Appraisal
Sale price¥19,800
Cambodian Blue Zircon (Ratanakiri Blue) 1.205ct Loose Stone
Sale price¥18,800
Cambodian Blue Zircon 1.606ct Loose
Sale price¥18,800
[Dandelion Cut] 7mm/1.412ct Sphene Loose Stone from Madagascar
Sale price¥59,800
Madagascar Bicolor Sphene 1.551ct Loose Stone
Sale price¥15,800
Mozambican Rhodolite Garnet 1.890ct Loose Stone
Sale price¥18,800
Tanzanite 1.004ct loose stone
Sale price¥18,800
Mexican Fire Opal 1.833ct Loose
Sale price¥39,800
Mexican Fire Opal 1.424ct Loose
Sale price¥39,800
Zimbabwean Blue Apatite (UV type) 1.061ct loose stone
Sale price¥11,000
Mexican Fire Opal 1.743ct Loose
Sale price¥18,800
Pakistan scheelite 1.061ct loose (orange scheelite)
Sale price¥25,800
YAG (Yttrium Aluminum Garnet) 1.357ct loose stone
Sale price¥15,800
YAG (Yttrium Aluminum Garnet) 1.171ct loose stone
Sale price¥14,800
Bicolor tourmaline 1.198ct loose
Sale price¥12,800
Moss Agate 1.115ct loose
Sale price¥8,800
Sunstone (Illusion Sunstone) 1.908ct loose
Sale price¥8,800
Tanzanian Kornerupine Cat's Eye 1.331ct Loose Stone
Sale price¥5,980
Brazilian Apatite in Jasper 1.477ct Loose Stone
Sale price¥5,980
Medusa Quartz (Paraiba Quartz) 1.666ct loose
Sale price¥18,800
Moss agate 1.285ct loose stone
Sale price¥5,980
Spanish bicolor sphalerite 1.686ct loose stone
Sale price¥29,800
Brazilian Medusa Quartz (Paraiba Quartz) 1.529ct Loose Stone
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.241ct Loose Stone
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.405ct Loose Stone
Sale price¥8,800
Australian Black Opal 1.705ct Loose
Sale price¥12,800
Australian black opal 1.311 ct loose stone
Sale price¥18,800
Australian Black Opal 1.539ct Loose
Sale price¥15,800
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.