Brazilian Color-Shift Amethyst, 1.865 ct Loose
Sale price¥9,800
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 4.3mm/0.379ct loose stone
Sale price¥9,800
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) 0.952ct Loose Stone
Sale price¥9,800
Australian black opal 1.393ct loose
Sale price¥48,800
Sri Lankan Bi-Color Sapphire 0.434ct Loose Stone
Sale price¥12,800
Mexican Fire Opal (Faceted) 1.046ct Loose Gemstone
Sale price¥29,800
Tanzanian Tanzanite 4.1mm/0.295ct Loose Stone
Sale price¥9,800
1.415ct Loose Tanzanian Lavender Tanzanite
Sale price¥45,800
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
Brazilian Sky Blue Topaz, 0.756 ct, loose stone
Sale price¥8,800
Brazilian Paraiba Tourmaline 0.170ct Loose Stone (CuO: 2.1%, MnO: 1.1%)
Sale price¥258,000
0.274 ct Loose Colombian Bi-Color Emerald
Sale price¥98,000
Ruby 0.286ct Loose Stone with Certificate
Sale price¥22,800
Colombian mint color emerald 0.136ct loose stone
Sale price¥6,980
Colombian mint color emerald 0.155ct loose stone
Sale price¥7,980
Colombian Trapiche Emerald 0.422ct Loose
Sale price¥18,800
Bicolor Zoisite 0.823ct rough stone
Sale price¥6,980
Bicolor Tanzanite 1.677ct rough stone
Sale price¥7,980
Colombian emerald 0.499ct rough stone
Sale price¥14,800
Colombian emerald 0.443ct rough stone
Sale price¥8,800
Mica in Quartz 0.865ct Loose Stone
Sale price¥5,980
Mica in Quartz 0.736ct loose stone
Sale price¥5,980
Mica in Quartz 0.710ct Loose
Sale price¥5,980
0.168ct Pakistan Vayrynenite Loose Gemstone
Sale price¥35,800
1.758 ct Ruby Loose Stone from Vietnam with Identification Report
Sale price¥49,800
Ruby 0.528ct Loose Stone with Gem Identification Report
Sale price¥28,800
Brazilian canary yellow chrysoberyl 1.572ct loose
Sale price¥39,800
0.689ct Loose Colombian Emerald
Sale price¥18,800
Brazilian Indicolite Tourmaline 0.352ct Loose Stone with Certification
Sale price¥29,800
Unheated Brazilian Imperial Topaz (Sherry Color) 0.314ct Loose
Sale price¥22,800
Brazilian unheated imperial topaz (sherry color) 0.368ct loose gemstone
Sale price¥25,800
Madagascar Bekily Blue Garnet (Color Change Garnet) 0.257ct Loose Stone
Sale price¥25,800
Madagascar Bekily Blue Garnet (Color Change Garnet) 0.167ct Loose
Sale price¥16,800
Madagascar Bekily Blue Garnet (Color Change Garnet) 0.188ct Loose Stone
Sale price¥18,800
0.186ct loose Bekily blue garnet (color-change garnet) from Madagascar
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.