Colombian emerald with pyrite 0.248ct rough stone
Sale price¥12,800
Unheated Sri Lankan star sapphire 3.9mm/0.499ct loose gemstone
Sale price¥8,800
Unheated Sri Lankan Star Sapphire 0.523ct Loose Stone
Sale price¥9,800
Unheated Sri Lankan Star Sapphire 0.618ct Loose Stone
Sale price¥9,800
0.710ct Unheated Star Sapphire Loose Stone from Sri Lanka
Sale price¥8,800
Unheated Sri Lankan Star Sapphire 0.737ct Loose Stone
Sale price¥9,800
0.281ct Tanzanian Yellow Sapphire Loose Gemstone
Sale price¥6,980
Mexican Fire Opal 1.833ct Loose
Sale price¥39,800
Mexican Fire Opal 1.424ct Loose
Sale price¥39,800
Nepalese bicolor kyanite 0.987ct loose stone
Sale price¥9,800
Nepalese Bicolor Kyanite 6.3mm/0.903ct Loose Stone
Sale price¥9,800
Mexican Fire Opal 2.235ct Loose
Sale price¥19,800
Mexican Fire Opal 1.743ct Loose
Sale price¥18,800
Mexican Fire Opal 3.425ct Loose
Sale price¥22,800
[12551250] Brazilian oil-free emerald 0.120ct loose stone
Sale price¥110,000
Mexican Cantera Opal 15.195ct Loose
Sale price¥12,800
Gray Diamond 0.158ct Loose (FANCY DARK GRAY, I-1)
Sale price¥45,800
Australian black opal 2.277ct loose stone (play of color on both sides)
Sale price¥34,800
Mexican egg-in-opal 0.865ct loose stone
Sale price¥12,800
Mexican egg-in-opal 0.672ct loose stone
Sale price¥11,000
Brown Diamond 0.531ct Loose (FANCY DARK BROWN, SI-2)
Sale price¥39,800
Australian black opal 0.439ct loose
Sale price¥11,800
Loose Australian Black Opal 0.397ct
Sale price¥12,800
Australian Black Opal 0.329ct Loose
Sale price¥14,800
Australian Black Opal 0.377 ct Loose
Sale price¥15,800
Australian Black Opal 0.448ct Loose Stone
Sale price¥15,800
Australian Black Opal 0.529ct Loose
Sale price¥15,800
Australian Black Opal 0.552ct Loose
Sale price¥8,800
Australian black opal 0.667ct loose stone
Sale price¥12,800
Australian Black Opal 1.705ct Loose
Sale price¥12,800
Australian Black Opal 0.362ct Loose
Sale price¥18,800
Australian Black Opal 0.385ct Loose Stone
Sale price¥18,800
Australian black opal, 0.666ct loose
Sale price¥12,800
Australian black opal, 0.336ct loose stone
Sale price¥19,800
Australian Black Opal 0.415ct Loose
Sale price¥18,800
Australian Black Opal 0.548ct Loose
Sale price¥18,800
Australian Black Opal 0.744ct Loose Gemstone
Sale price¥18,800
Australian black opal loose stone, 0.618ct
Sale price¥15,800
Australian black opal 1.311 ct loose stone
Sale price¥18,800
Australian Black Opal 0.387ct Loose
Sale price¥18,800
Australian Black Opal 0.605ct Loose Stone
Sale price¥22,800
Australian Black Opal 0.754ct Loose
Sale price¥22,800
Australian Black Opal 0.940ct Loose
Sale price¥18,800
Australian Black Opal 1.539ct Loose
Sale price¥15,800
Australian Black Opal 0.754ct Loose
Sale price¥22,800
Australian Black Opal 0.768ct Loose
Sale price¥25,800
Australian black opal 0.758ct loose stone
Sale price¥35,800
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.