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-produced Red Coral 1.379 ct Loose Stone
Sale price¥11,800
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-produced red coral 1.063ct loose gemstone
Sale price¥12,800
Brazilian rose quartz 8.7mm/2.536ct loose stone
Sale price¥11,800
American Oregon Sunstone 1.032ct Loose
Sale price¥25,800
Brazilian yellow beryl, 1.472 ct loose
Sale price¥19,800
1.361ct loose Amphibole in Danburite from Brazil
Sale price¥14,800
Brazilian Green Tourmaline 0.770ct Loose Stone with Appraisal Report
Sale price¥25,800
Malawi Moonstone (Malawi) 1.651ct Loose
Sale price¥8,800
Oregon Sunstone from the USA, 8.1mm/1.840ct Loose Stone
Sale price¥39,800
Brazilian Dumortierite in Quartz 4.152ct Loose Stone
Sale price¥25,800
[Lottery Sale_0612_09] Yellow Sapphire 2.150ct Loose Gemstone GIT
Sale price¥158,000
Moonstone from Malawi (Malawi Moonstone) 1.684ct Loose
Sale price¥9,800
[On sale August 3rd at 10 PM] Malawi Moonstone 2.183ct Loose Stone
Sale price¥12,800
Brazilian Dendritic Agate 2.788ct Loose Stone
Sale price¥6,980
Oregon Sunstone from the United States 0.736ct loose stone
Sale price¥8,800
Tanzanian Kornerupine Cat's Eye 1.608ct Loose Stone
Sale price¥6,980
Indian Moonstone 8mm/1.879ct Loose
Sale price¥6,980
0.755 ct Loose Australian Black Opal
Sale price¥12,800
[12550851] 2.944ct Mozambique pink tourmaline loose stone
Sale price¥39,800
Lepidocrocite in quartz 0.770ct loose
Sale price¥6,980
Bicolor tourmaline 1.329ct loose
Sale price¥9,800
Malawi Moonstone 2.055ct Loose
Sale price¥16,800
Tanzania Green Zoisite 0.709ct Loose Stone
Sale price¥16,800
Pink tourmaline 1.157ct loose stone
Sale price¥12,800
Spanish Andalusite 0.930ct Loose Gemstone
Sale price¥12,800
Brazilian Color-Shift Amethyst, 1.865 ct Loose
Sale price¥9,800
Brazilian Lavender Quartz (Scorolite) 2.211ct Loose
Sale price¥12,800
Mexican Fire Opal (Faceted) 1.046ct Loose Gemstone
Sale price¥29,800
1.758 ct Ruby Loose Stone from Vietnam with Identification Report
Sale price¥49,800
Lavender quartz (scorolite) 1.130ct loose stone
Sale price¥5,980
Tanzanian Yellow Scapolite 1.780ct Loose
Sale price¥8,800
Mexican Cantera Opal 1.867 ct Loose Stone
Sale price¥12,800
Star Sapphire from Sri Lanka, 4.758 ct Loose Stone (Color Shift)
Sale price¥158,000
3.020 ct Pakistani emerald in quartz loose gemstone
Sale price¥18,800
Madagascar Bicolor Sphene 1.551ct Loose Stone
Sale price¥15,800
Bicolor tourmaline 1.198ct loose
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.