Mozambique pink spinel 0.670ct loose stone
Sale price¥22,800
Sri Lankan Star Sapphire 6.477ct Loose
Sale price¥49,800
Sri Lankan Star Sapphire 7.111ct Loose
Sale price¥59,800
Purple spinel 0.403ct loose stone
Sale price¥5,980
Mozambique Aquamarine 0.216ct Loose Stone
Sale price¥6,980
American Peridot 0.339ct Loose Stone
Sale price¥6,980
Detroit City Rhodochrosite 4mm/0.434ct Loose Stone
Sale price¥8,800
Aquamarine 0.327ct loose stone
Sale price¥9,800
Mexican Opal 9.6mm/1.803ct Loose (Contralus Opal)
Sale price¥49,800
Unheated Mozambique Ruby 2.7mm/0.135ct Loose
Sale price¥19,800
Afghanite from Afghanistan 0.617ct loose stone
Sale price¥69,800
Colombian Trapiche emerald 0.418ct rough stone
Sale price¥39,800
Sri Lankan Chrysoberyl Cat's Eye 4.1mm/0.490ct Loose
Sale price¥15,800
[Colorful] Pt900 1.33ct Thai Sapphire and 0.12ct Diamond Ring GIA
Sale price¥198,000
[Colorful] Pt900 Madagascar Sapphire 0.99ct / Diamond 0.58ct Ring GIA
Sale price¥228,000
[COLORFUL] Pt900 Diamond 1.00ct Pendant (Necklace)
Sale price¥49,800
Tanzanian Pink Zoisite 0.190ct Loose Stone with Gemstone Report
Sale price¥79,800
Sillimanite from Sri Lanka 1.704ct loose stone
Sale price¥18,800
Pink tourmaline 1.157ct loose stone
Sale price¥12,800
Brazilian Flower Quartz 7.064ct Loose Stone
Sale price¥14,800
Australian black opal 0.650ct loose
Sale price¥15,800
Colombian emerald 0.145ct loose stone with precious stone
Sale price¥29,800
Namibian Jeremejevite 0.261ct loose stone
Sale price¥45,800
Jeremejevite 0.201ct loose stone
Sale price¥29,800
Brazilian Bicolor Euclase 2.4mm/0.051ct Loose Stone
Sale price¥18,800
Tanzanian Kornerupine 0.300ct Loose Stone
Sale price¥18,800
Tanzanian Kornerupine 0.210ct loose stone
Sale price¥11,000
Tanzanian Kornerupine 0.220ct loose stone
Sale price¥6,980
Tanzanian Kornerupine 0.229ct loose stone
Sale price¥9,800
Tanzanian Kornerupine 0.249ct loose stone
Sale price¥15,800
Tanzanian Kornerupine 0.201ct loose stone
Sale price¥14,800
Tanzanian Kornerupine 0.200ct Loose Stone
Sale price¥9,800
German Awinite 0.070ct loose stone
Sale price¥29,800
German Awinite 0.056ct loose stone
Sale price¥22,800
Colombian emerald 0.512ct loose stone (silky type)
Sale price¥12,800
Brazilian Romanesite in Amethyst 7.083ct Loose Stone
Sale price¥15,800
Brazilian Flower Quartz 4.666ct Loose Stone
Sale price¥9,800
Brazilian Paraiba Tourmaline 0.038ct Loose Stone (CuO:1.3%, MnO:2.7%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.041ct Loose (CuO:1.9%, MnO:4.3%)
Sale price¥39,800
Brazilian Paraiba Tourmaline 0.038ct Loose Stone (CuO:1.6%, MnO:2.8%)
Sale price¥45,800
Paraiba Tourmaline from Brazil 0.037ct loose stone (CuO:1.4%, MnO:2.6%)
Sale price¥25,800
Brazilian Paraiba Tourmaline 0.050ct Loose Stone (CuO:1.9%, MnO:3.6%)
Sale price¥39,800
Paraiba Tourmaline from Brazil, 0.039ct loose stone (CuO:1.6%, MnO:2.9%)
Sale price¥35,800
0.035ct loose Brazilian Paraiba Tourmaline (CuO:1.6%, MnO:3.3%)
Sale price¥29,800
Brazilian Aquamarine 68.088ct Loose Stone with Gem Identification Report
Sale price¥39,800
Brazilian Emerald Cat's Eye 1.022ct Loose Stone with Appraisal
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.