Cabochon Cut
Kochi Prefecture Aka Coral 4.627ct Loose Gemstone
Sale price¥22,800
[Posted on 12563864] Australian Black Opal 1.797ct Loose Stone
Sale price¥69,800
[Published as 12564054] Kochi Prefecture Coral 8.132ct Loose Stone
Sale price¥69,800
[Posted as 12563996] Australian Black Opal 1.029ct Loose Stone
Sale price¥29,800
[Listed on 12562258] Eudialyte from Canada 2.796 ct loose stone
Sale price¥39,800
Kochi Prefecture Aka Sango (Red Coral) 1.439ct Loose Stone
Sale price¥9,800
Kochi Prefecture-produced red coral 0.978ct loose stone
Sale price¥9,800
Kochi Prefecture Aka珊瑚 (Red Coral) 1.128ct Loose Stone
Sale price¥9,800
Kochi Prefecture-sourced deep red coral, 1.238ct loose stone
Sale price¥9,800
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
Colombia Emerald Cat's Eye 0.060ct Loose, Hōki Kyō
Sale price¥15,800
[Listed as 12563246] Mexican Fire Opal 1.115ct Loose
Sale price¥25,800
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
1.348 ct loose red coral from Kochi Prefecture
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
1.082ct Loose Australian Black Opal with Certification
Sale price¥69,800
Australian Black Opal 1.066ct Loose
Sale price¥69,800
Australian Black Opal 0.778ct Loose
Sale price¥35,800
Australian Rainbow Lattice Sunstone 2.208ct Loose
Sale price¥22,800
Brazilian Dumortierite in Quartz 1.684ct Loose Gemstone
Sale price¥12,800
Brazilian Dumortierite in Quartz 4.152ct Loose Stone
Sale price¥25,800
Kochi Prefecture-produced red coral (Boke) 4.485ct loose gemstone
Sale price¥98,000
[Lottery Sale 0428_2_07] Watermelon Tourmaline 14.780ct Loose Stone
Sale price¥128,000
Dumortierite in quartz from Brazil 7.3mm/1.729ct loose stone
Sale price¥12,800
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.