Kochi Prefecture Blood Coral 1.286ct Loose Stone
Sale price¥9,800
Kochi Prefecture-produced Red Coral 1.379 ct Loose Stone
Sale price¥11,800
Kochi Prefecture-produced red coral 1.321ct loose stone
Sale price¥9,800
[Published on 12563087] Unheated Ruby 0.216ct Loose Stone
Sale price¥59,800
Kochi Prefecture Deep-Red Coral 1.446ct Loose Gemstone
Sale price¥12,800
Red Coral from Kochi Prefecture, 1.119ct Loose Stone
Sale price¥11,800
Kochi Prefecture oxblood coral 1.001ct loose gemstone
Sale price¥12,800
Kochi Prefecture Deep Red Coral 1.290ct Loose Gemstone
Sale price¥12,800
Kochi Prefecture-produced red coral 1.063ct loose gemstone
Sale price¥12,800
Kochi Prefecture produced oxblood coral 1.087ct loose gemstone
Sale price¥12,800
Oregon Sunstone from the USA, 7.0mm/1.345ct Loose
Sale price¥35,800
American Oregon Sunstone 1.032ct Loose
Sale price¥25,800
0.229 ct Loose Red Spinel from Myanmar with Certificate
Sale price¥45,800
USA Origin Oregon Sunstone 7.1mm/1.397ct Loose Stone
Sale price¥39,800
American Oregon Sunstone 10.8mm/4.864ct Loose
Sale price¥98,000
Loose Oregon Sunstone from the USA, 7.0mm/1.224ct
Sale price¥28,800
Oregon Sunstone from the USA, 8.1mm/1.840ct Loose Stone
Sale price¥39,800
Kochi Prefecture-produced red coral (Boke) 4.485ct loose gemstone
Sale price¥98,000
0.416ct Loose Mozambique Ruby with Gemstone Identification Report
Sale price¥29,800
Kochi Prefecture deep red coral 7.815ct loose gemstone
Sale price¥42,800
Kochi Prefecture oxblood coral 1.593ct loose
Sale price¥9,800
Kochi Prefecture Blood Coral 1.585ct Loose Gemstone
Sale price¥9,800
Kochi Prefecture Aka Sango (Red Coral) 10.209ct Loose Stone
Sale price¥29,800
Almandine Garnet 1.471ct Loose Stone
Sale price¥14,800
Almandine Garnet 1.388ct Loose Stone
Sale price¥11,800
Almandine Garnet 1.988ct Loose Stone
Sale price¥16,800
Almandine Garnet 1.485ct Loose Stone
Sale price¥15,800
Almandine Garnet 1.058ct Loose Stone
Sale price¥12,800
Tanzanian Rhodolite Garnet 0.448ct Loose Stone
Sale price¥6,980
Tanzanian Rhodolite Garnet 0.810ct Loose Stone
Sale price¥9,800
Unheated Ruby, 0.207 ct, Loose Stone, Hōki Kyō
Sale price¥69,800
0.938 ct Tanzanian Almandine Garnet Loose Stone
Sale price¥12,800
Myanmar red spinel 3.3mm/0.172ct loose
Sale price¥8,800
Burmese Red Spinel 3.5mm/0.214ct Loose Stone
Sale price¥9,800
Loose 0.234ct Burmese Red Spinel
Sale price¥12,800
0.249ct Myanmar Red Spinel Loose Stone
Sale price¥12,800
American Red Beryl 0.147ct Loose
Sale price¥35,800
American Red Beryl 0.132ct Loose
Sale price¥33,800
American red beryl 0.143ct loose
Sale price¥35,800
Lepidocrocite in quartz 0.770ct loose
Sale price¥6,980
Lepidocrocite in quartz 0.532ct loose
Sale price¥6,980
Mongolian Andesine 0.464ct Loose Stone
Sale price¥9,800
Ruby 0.820ct Loose Gem (Hohki-kyo)
Sale price¥39,800
0.464 ct Mozambique Ruby Loose Stone with Identification Report
Sale price¥29,800
Kochi Prefecture Blood Coral 2.340ct Loose
Sale price¥19,800
Kochi Prefecture Blood Coral 2.294ct Loose
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.