Brazilian Marcasite in Quartz 6.670ct Loose Gemstone
Sale price¥25,800
Synthetic Rutile 6.2mm/1.594ct Loose
Sale price¥15,800
Sugilite from South Africa, 0.786ct loose stone
Sale price¥12,800
Paraiba Tourmaline from Brazil 0.265ct Loose (CuO: 0.7%, MnO: 3.0%)
Sale price¥29,800
Pink tourmaline 0.845ct loose stone
Sale price¥12,800
Brazilian Quartz in Quartz 15.373ct Loose Stone
Sale price¥18,800
Tanzanian Kornerupine 0.172ct loose stone
Sale price¥12,800
Paraiba tourmaline from Brazil 0.061ct loose
Sale price¥25,800
Paraiba tourmaline from Brazil 0.049ct loose
Sale price¥19,800
Tanzanian Kornerupine 0.213ct loose stone
Sale price¥12,800
Paraiba tourmaline from Brazil 0.018ct loose
Sale price¥12,800
Madagascar Yellow Sapphire 4.4mm/0.417ct Loose
Sale price¥14,800
Madagascar Blue Sapphire 0.302ct Loose
Sale price¥15,800
Madagascar pink sapphire 0.346ct loose stone
Sale price¥15,800
Sri Lankan Blue Sapphire 0.519ct Loose
Sale price¥14,800
Tanzania Green Zoisite 0.709ct Loose Stone
Sale price¥16,800
Diamond 3.7mm/0.197ct Loose (H, VS-1, Good)
Sale price¥29,800
Diamond 3.5mm/0.145ct Loose (F, VS-1, VeryGood)
Sale price¥26,800
Loose diamond 3.1mm/0.117ct (D, VVS-2, VeryGood)
Sale price¥23,800
0.093ct Hackmanite from Afghanistan
Sale price¥16,800
Brazilian Seafoam Tourmaline, 4.1mm/0.303ct loose stone
Sale price¥16,800
Brazilian Seafoam Tourmaline, 4.1mm/0.280ct Loose
Sale price¥15,800
0.464 ct Mozambique Ruby Loose Stone with Identification Report
Sale price¥29,800
Kochi Prefecture Blood Coral 2.340ct Loose
Sale price¥19,800
Kochi Prefecture Blood Coral 2.294ct Loose
Sale price¥19,800
Kochi Prefecture red coral 2.187ct loose
Sale price¥19,800
Kochi Prefecture Deep Red Coral 1.975ct Loose Stone
Sale price¥18,800
Synthetic Moissanite 8.679ct loose stone
Sale price¥29,800
Paraiba tourmaline from Brazil 0.071ct loose
Sale price¥19,800
Greenland sapphire 0.592ct loose stone
Sale price¥18,800
Mozambique pink spinel 0.670ct loose stone
Sale price¥22,800
Unheated Mozambique Ruby 2.7mm/0.135ct Loose
Sale price¥19,800
Sri Lankan Chrysoberyl Cat's Eye 4.1mm/0.490ct Loose
Sale price¥15,800
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
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
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.