0.168ct Pakistan Vayrynenite Loose Gemstone
Sale price¥35,800
Diamond 3.8mm/0.197ct Loose (E, VVS-1, VeryGood)
Sale price¥39,800
Diamond 3.5mm/0.167ct Loose (D, VVS-2, VeryGood)
Sale price¥37,800
Diamond 3.8mm/0.211ct Loose Stone (E, VS-2, Excellent)
Sale price¥49,800
Diamond 3.8mm/0.216ct Loose (G, VS-1, Excellent)
Sale price¥49,800
Diamond 3.8mm/0.207ct Loose (F, VS-1, Excellent)
Sale price¥35,800
[Color-furi] K18 Fire Opal Ring with Certificate of Authenticity
Sale price¥49,800
Brazilian canary yellow chrysoberyl 1.572ct loose
Sale price¥39,800
Zimbabwean Euclase 0.088ct loose stone
Sale price¥49,800
Russian Alexandrite 2.5mm/0.078ct Loose Stone
Sale price¥49,800
Sri Lankan Ilmenite in Star Sapphire 3.426ct loose stone (Ratnapura)
Sale price¥49,800
Mexican Cantera Opal 10.379ct Loose Stone
Sale price¥39,800
6.558ct Loose Australian Black Opal with Certificate of Authenticity
Sale price¥39,800
K18 Rock Crystal Ring
Sale price¥42,800
0.176 ct Zimbabwean Bicolor Euclase Loose Gemstone
Sale price¥38,800
Pink Diamond 2.1mm/0.034ct Loose (FANCY PURPLE PINK, I-1)
Sale price¥34,800
K18YG Tanzanian Tanzanite 0.344ct Pendant Top
Sale price¥39,800
Paraiba Tourmaline Loose Stone from Brazil 0.068ct (CuO: 1.1% MnO: 0.1%)
Sale price¥45,800
Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:1.2% MnO:1.2%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:1.4% MnO:1.1%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.051ct Loose Stone (CuO:1.1% MnO:0.6%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.048ct (CuO:1.5% MnO:1.0%)
Sale price¥35,800
Malawi Moonstone (Malawi Moonstone) 5.767ct Loose
Sale price¥45,800
Malawi Moonstone (Malawi Moonstone) 4.777ct Loose
Sale price¥45,800
Malawi Moonstone 4.392ct Loose
Sale price¥32,800
4.168ct loose Malawi Moonstone
Sale price¥39,800
Malawi Moonstone 3.912ct Loose Gemstone
Sale price¥37,800
Malawi Moonstone (Malawi Moonstone) 3.517 ct Loose
Sale price¥35,800
Mexican Fire Opal 1.833ct Loose
Sale price¥39,800
Mexican Fire Opal 1.424ct Loose
Sale price¥39,800
Synthetic Moissanite 8.417ct Loose Stone
Sale price¥39,800
Synthetic Moissanite 8.931ct loose stone
Sale price¥45,800
0.113 ct Zimbabwe Euclase loose gemstone
Sale price¥45,800
Iridescent Tourmaline 3.107ct Loose Stone
Sale price¥37,800
Gray Diamond 0.158ct Loose (FANCY DARK GRAY, I-1)
Sale price¥45,800
Australian black opal 2.277ct loose stone (play of color on both sides)
Sale price¥34,800
Australian black opal 0.758ct loose stone
Sale price¥35,800
Australian black opal 1.168ct loose stone
Sale price¥39,800
Dioptase from Namibia 0.150ct loose Japanese-German book
Sale price¥49,800
Blue Tourmaline 1.460ct Loose Stone Japan-Germany Exchange
Sale price¥39,800
Brazilian Lazulite 0.067ct Loose with certificate
Sale price¥39,800
American Oregon Sunstone 7.0mm/1.494ct Loose
Sale price¥35,800
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.