Brazilian Paraiba Tourmaline 0.233ct loose stone (CuO: 1.6%. MnO: 2.4%)
Sale price¥358,000
Colombian oil-free emerald 0.290ct loose stone GIA
Sale price¥198,000
Royal Blue Sapphire 1.182ct Loose (Calfshead) AIGS
Sale price¥98,000
Amazon Green Opal 0.781ct Loose (Faceted Cut)
Sale price¥7,980
Amazonian green opal 1.814ct loose stone (faceted cut)
Sale price¥9,800
Amazon Green Opal 1.372ct Loose (Faceted Cut)
Sale price¥8,800
Colombian pyrite in emerald 6.415ct loose stone
Sale price¥298,000
Brazilian Green Tourmaline 12.252ct Loose Stone
Sale price¥398,000
Greenland Tugtupite 0.546ct loose stone
Sale price¥29,800
Greenland Tugtupite 0.642ct loose stone
Sale price¥25,800
Greenland Tugtupite 0.140ct loose stone
Sale price¥15,800
[Confetti Cut] Color Shift Amethyst 3.499ct Loose Stone
Sale price¥22,800
[Camellia Cut] Oregon Sunstone 14mm/2.102ct {Collaboration} Loose Patch
Sale price¥79,800
Brazilian Alexandrite 0.072ct loose stone (princess cut)
Sale price¥18,800
Brazilian Alexandrite 0.068ct loose stone (princess cut)
Sale price¥17,800
Brazilian Alexandrite 0.069ct loose stone (princess cut)
Sale price¥17,800
Watermelon tourmaline 6.575ct rough stone
Sale price¥9,800
Indian Moonstone 1.946ct Loose
Sale price¥14,800
Mexican Cantera Opal 5.204ct Loose
Sale price¥12,800
Emerald 0.308ct loose stone
Sale price¥14,800
Tanzania Green Apatite 0.329ct Loose Stone
Sale price¥8,800
American Benitoite 0.084ct loose stone (colorless Benitoite)
Sale price¥12,800
Tanzania Green Apatite 0.190ct Loose Stone
Sale price¥6,980
Tanzania Green Apatite 0.246ct Loose Stone
Sale price¥8,800
Madagascar sapphire 0.377ct loose stone
Sale price¥12,800
Madagascar sapphire 0.162ct loose stone
Sale price¥5,980
Madagascar Yellow Sapphire 0.283ct Loose
Sale price¥6,980
Myanmar Ubaite Tourmaline 4.0mm/0.251ct Loose Stone
Sale price¥22,800
Sri Lankan Enstatite 2.567ct Loose Stone, Japan-Germany Exchange
Sale price¥19,800
Tanzanian Kornerupine Cat's Eye 0.622ct Loose Stone
Sale price¥4,980
Mexican Fire Opal 6.117ct Loose (Bicolor Fire Opal)
Sale price¥98,000
[Camellia Cut] Ametrine 12mm/5.411ct {Collaboration} Loose Stone Patch
Sale price¥55,800
Myanmar Podretteite 0.238ct loose stone Nissaiho
Sale price¥35,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 3.865ct Loose Stone
Sale price¥19,800
Italian Leucite 0.346ct loose stone (play of color)
Sale price¥12,800
[Koshu Precious Stones Plusthree] Ametrine 5.170ct Loose Patch
Sale price¥45,800
Mexican Fire Agate 6.090ct Loose Stone
Sale price¥14,800
Malawi Sapphire 3mm/0.131ct Loose
Sale price¥15,800
Purple zoisite from Tanzania 1.103ct loose Japanese German edition
Sale price¥98,000
Pakistani Clinohumite 1.440ct Loose Stone, Japan-Germany Exchange
Sale price¥29,800
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.