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
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 0.249ct loose stone
Sale price¥15,800
Tanzanian Kornerupine 0.201ct loose stone
Sale price¥14,800
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
Paraiba Tourmaline from Brazil 0.037ct loose stone (CuO:1.4%, MnO:2.6%)
Sale price¥25,800
0.035ct loose Brazilian Paraiba Tourmaline (CuO:1.6%, MnO:3.3%)
Sale price¥29,800
Brazilian Emerald Cat's Eye 1.022ct Loose Stone with Appraisal
Sale price¥12,800
Australian Boulder Opal 41.775 ct Loose Stone
Sale price¥19,800
Australian Boulder Opal 12.216ct Loose
Sale price¥15,800
Brazilian alexandrite 0.061ct loose
Sale price¥12,800
Brazilian alexandrite 0.058ct loose
Sale price¥11,000
Brazilian alexandrite 0.060ct loose
Sale price¥11,000
Pink tourmaline 6.1mm/1.031ct loose stone
Sale price¥12,800
Spanish Andalusite 0.930ct Loose Gemstone
Sale price¥12,800
Madagascar Apatite Cat's Eye 2.800ct Loose Stone Nichesyo
Sale price¥29,800
China Hunan Province Cinnabar 1.056ct Loose Gemstone with Certificate
Sale price¥18,800
Sri Lankan Chrysoberyl Cat's Eye 4.3mm/0.582ct Loose Stone
Sale price¥15,800
GGG (Gadolinium Gallium Garnet) 0.511 ct Loose Stone
Sale price¥12,800
Synthetic Alexandrite Loose Stone 5.8mm/0.979ct
Sale price¥22,800
Synthetic Alexandrite 1.241ct Loose Stone
Sale price¥25,800
Synthetic Alexandrite 0.808ct Loose
Sale price¥18,800
Synthetic Alexandrite 0.414ct Loose
Sale price¥12,800
Brazilian Lavender Quartz (Scorolite) 2.211ct Loose
Sale price¥12,800
Brazil Color Change Amethyst 6.559ct Loose Stone
Sale price¥15,800
Brazil Rose Amethyst 6.325ct Loose Gemstone
Sale price¥12,800
Sri Lankan Bi-Color Sapphire 0.434ct Loose Stone
Sale price¥12,800
Brazilian Limonite in Topaz 7.141ct Loose
Sale price¥19,800
Mexican Fire Opal (Faceted) 1.046ct Loose Gemstone
Sale price¥29,800
Tanzanian Tanzanite 0.406ct Loose Stone
Sale price¥12,800
0.289 ct Loose Spanish Cobalt Calcite with Certificate
Sale price¥29,800
Spanish Cobalt Calcite 0.253ct Loose Stone with Certificate
Sale price¥25,800
Brazilian Green Spodumene Loose Stone 1.460 ct
Sale price¥12,800
0.056 ct loose Eudialyte from Canada with certificate
Sale price¥15,800
Pink Diamond 0.137ct Loose (FANCY DEEP BROWNISH PINK, I-1)
Sale price¥29,800
Ruby 0.286ct Loose Stone with Certificate
Sale price¥22,800
Loose Brown Diamond 0.290ct (FANCY BROWN, SI-2)
Sale price¥15,800
Colombian Trapiche Emerald 0.422ct Loose
Sale price¥18,800
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.