Mexican Cantera Opal 17.284ct Loose
Sale price¥39,800
Mexican Cantera Opal 7.520 ct Loose Stone with Appraisal
Sale price¥24,800
Mexican Cantera Opal 5.811 ct Loose Stone with Certificate
Sale price¥29,800
Ethiopian Opal 2.131ct Loose
Sale price¥9,800
Mexican Hyalite Opal 0.774ct Loose (Faceted Cut)
Sale price¥8,800
Mexican Fire Opal (faceted) 0.645ct Loose Stone
Sale price¥18,800
[On sale at 10 PM on May 2nd] Mexican Cantera Opal 32.560ct Loose Stone
Sale price¥29,800
[On sale May 2nd at 10 PM JST] Mexican Cantera Opal 27.410ct Loose Stone
Sale price¥25,800
Mexican Cantera Opal 10.379ct Loose Stone
Sale price¥39,800
Mexican Cantera Opal 7.619 ct Loose Stone
Sale price¥25,800
Mexican Cantera Opal 5.410 ct Loose Stone
Sale price¥9,800
[On sale May 6th at 10 PM JST] Mexican Cantera Opal Loose Stone 7.207ct
Sale price¥25,800
Mexican Cantera Opal 3.051ct Loose Stone
Sale price¥18,800
Mexican Cantera Opal 1.867 ct Loose Stone
Sale price¥12,800
[Colorful] Pt900 Black Opal 0.83ct / Diamond 0.62ct Ring with Certificate
Sale price¥228,000
Peruvian Bicolor Blue Opal 4.379 ct 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
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
Mexican Cantera Opal 15.195ct Loose
Sale price¥12,800
Mexican Opal 0.502ct Loose (Faceted Cut)
Sale price¥9,800
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
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
[On sale May 3rd, 10 PM JST] Australian Black Opal Loose Stone 0.529ct
Sale price¥15,800
[On sale May 3, 10 PM JST] 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
[On Sale May 3, 10 PM JST] Australian Black Opal 0.385ct Loose Gemstone
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
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.