Afghan Green Hauyne 3.6mm/0.135ct Loose with Certification
Sale price¥35,800
Unheated Ruby, 0.207 ct, Loose Stone, Hōki Kyō
Sale price¥69,800
Pakistani Oil in Quartz 0.438ct Loose Stone
Sale price¥6,980
Afghan Hauyne 0.098ct Loose Stone with Certification
Sale price¥25,800
0.080ct Loose Afghan Hauyne with Certificate
Sale price¥22,800
Scapolite 0.587ct loose stone from Japan and Germany
Sale price¥8,800
Ruby 0.820ct Loose Gem (Hohki-kyo)
Sale price¥39,800
0.093ct Hackmanite from Afghanistan
Sale price¥16,800
Afghan Hackmanite 0.205 ct Loose
Sale price¥36,800
0.464 ct Mozambique Ruby Loose Stone with Identification Report
Sale price¥29,800
Unheated Mozambique Ruby 2.7mm/0.135ct Loose
Sale price¥19,800
Afghanite from Afghanistan 0.617ct loose stone
Sale price¥69,800
German Awinite 0.070ct loose stone
Sale price¥29,800
German Awinite 0.056ct loose stone
Sale price¥22,800
Ruby 0.286ct Loose Stone with Certificate
Sale price¥22,800
Ruby 0.528ct Loose Stone with Gem Identification Report
Sale price¥28,800
Burmese ruby 3.72ct loose GIA/CGL
Sale price¥298,000
Mexican Hyalite Opal 0.774ct Loose (Faceted Cut)
Sale price¥8,800
Tanzanian Yellow Scapolite 1.780ct Loose
Sale price¥8,800
Afghanite 0.447ct loose stone from Afghanistan, Japan-Germany
Sale price¥5,980
18K Yellow Gold Ruby Ring (Pigeon Blood Color)
Sale price¥128,000
Auinite 2.6mm/0.084ct loose
Sale price¥8,800
Unheated Pigeon Blood Ruby 0.380ct Loose Stone AIGS
Sale price¥79,800
Mexican Hyalite Opal 7.5mm/1.221ct Loose (Faceted Cut)
Sale price¥12,800
British Rogerley Fluorite 3.750 ct loose stone
Sale price¥8,800
German Apatite 0.048ct Loose Stone
Sale price¥19,800
Pakistani Oil in Quartz 0.651ct Loose Stone
Sale price¥7,980
Pakistani Oil in Quartz 0.443ct Loose Stone
Sale price¥5,980
Oil-in-quartz 24.653ct rough stone from Madagascar
Sale price¥7,980
Oil-in-quartz 31.973ct rough stone from Madagascar
Sale price¥8,800
Oil-in-quartz 30.677ct rough stone from Madagascar
Sale price¥8,800
Unheated Pigeon Blood Ruby 5.0mm/0.520ct Loose Stone AIGS
Sale price¥128,000
Pigeon Blood Ruby 4.6mm/0.490ct Loose
Sale price¥128,000
Pigeon Blood Ruby 0.250ct Loose Stone
Sale price¥79,800
Oil-in-quartz 22.073ct rough stone from Madagascar
Sale price¥4,980
Pakistani oil-in quartz 0.535ct loose
Sale price¥14,800
German Hauyne 2.7mm/0.076ct Loose Stone
Sale price¥29,800
Greenland Ruby 0.253ct Loose Stone with Certificate
Sale price¥49,800
Greenland Ruby 0.266ct Loose Stone with Certificate
Sale price¥22,800
Afghanistan Hackmanite 0.177ct loose stone
Sale price¥14,800
[Colorful] Pt900/Pt850 Auinite 0.08ct pendant (necklace)
Sale price¥79,800
Mexican Hyalite Opal 1.420ct Loose
Sale price¥18,800
Mexican Hyalite Opal 0.743ct Loose
Sale price¥12,800
Colombian bicolor fluorite 3.209ct loose stone
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.