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 0.956ct Loose Stone
Sale price¥39,800
Australian black opal 0.758ct loose stone
Sale price¥35,800
Australian black opal 1.168ct loose stone
Sale price¥39,800
Bicolor Tourmaline 0.649ct Loose Stone, Japan-Germany
Sale price¥12,800
Unheated Bicolor Paraiba Tourmaline 0.092ct Loose GIA
Sale price¥188,000
Bicolor Paraiba tourmaline 2.477ct loose DGL version
Sale price¥298,000
[Rouge Cut] Mexican Fire Opal 1.458ct Loose Stone
Sale price¥18,800
Brazilian Paraiba tourmaline in quartz 1.602ct loose
Sale price¥39,800
American red beryl 0.184ct loose
Sale price¥39,800
Montana Sapphire 0.515ct loose (bicolor sapphire)
Sale price¥15,800
Brazilian Sky Blue Topaz 0.746ct Loose Stone
Sale price¥8,800
0.834 ct loose Sky Blue Topaz from Brazil
Sale price¥8,800
Brazilian Limonite in Blue Topaz 9.314ct Loose Stone
Sale price¥25,800
Mexican fire opal 2.499ct loose stone
Sale price¥18,800
Montana Sapphire 0.397ct loose (bicolor sapphire)
Sale price¥12,800
Bicolor Tourmaline 9.0mm/2.507ct Loose
Sale price¥29,800
Mexican Hyalite Opal 7.5mm/1.221ct Loose (Faceted Cut)
Sale price¥12,800
Paraiba tourmaline from Mozambique 0.240ct loose
Sale price¥29,800
Paraiba tourmaline from Mozambique 0.414ct loose
Sale price¥45,800
Paraiba tourmaline from Mozambique 0.246ct loose
Sale price¥35,800
Mexican fire opal, 0.733 ct, loose
Sale price¥29,800
US Peridot 0.632ct Loose Stone
Sale price¥9,800
British Rogerley Fluorite 3.750 ct loose stone
Sale price¥8,800
0.521ct Loose Brazilian London Blue Topaz
Sale price¥6,980
American Peridot 0.643ct Loose Stone
Sale price¥12,800
Australian Prehnite 2.051ct loose stone
Sale price¥8,800
Sri Lankan Hessonite Garnet Loose Stone, 6.5mm/1.353ct
Sale price¥12,800
Sri Lankan Hessonite Garnet 0.441ct Loose Stone
Sale price¥8,800
Australian Prehnite 2.666ct loose stone
Sale price¥12,800
Australian Prehnite 0.908ct Loose
Sale price¥7,980
Benitoite from the USA, 0.064ct loose
Sale price¥29,800
Mexican Fire Opal 0.459ct Loose
Sale price¥18,800
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.