Colombian emerald 0.111ct loose stone with precious stone
Sale price¥29,800
Tanzanian Kornerupine 0.300ct Loose Stone
Sale price¥29,800
Tanzanian Kornerupine 0.210ct loose stone
Sale price¥18,800
Tanzanian Kornerupine 0.220ct loose stone
Sale price¥15,800
Tanzanian Kornerupine 0.229ct loose stone
Sale price¥25,800
Tanzanian Kornerupine 0.249ct loose stone
Sale price¥22,800
Tanzanian Kornerupine 0.303ct loose stone
Sale price¥12,800
Tanzanian Kornerupine 0.201ct loose stone
Sale price¥25,800
Tanzanian Kornerupine 0.200ct Loose Stone
Sale price¥18,800
Paraiba tourmaline from Mozambique 0.252ct loose
Sale price¥15,800
Paraiba Tourmaline from Mozambique 0.234ct loose stone
Sale price¥12,800
Green Spodumene 6.419ct loose stone
Sale price¥29,800
Tibetan bicolor andesine 2.657ct loose stone
Sale price¥25,800
Colombian emerald 0.345ct loose stone (silky type)
Sale price¥15,800
Colombian emerald 0.512ct loose stone (silky type)
Sale price¥14,800
Colombian pyrite-mica emerald 0.844ct loose stone
Sale price¥35,800
Tanzanian Chrome Tourmaline 0.522ct Loose Stone
Sale price¥5,980
Brazilian Alexandrite 0.066ct loose stone
Sale price¥12,800
Colombian pyrite-mica emerald 0.815ct loose stone
Sale price¥39,800
Colombian Trapiche Emerald 0.317ct Rough Stone
Sale price¥19,800
Colombian Trapiche emerald 0.424ct rough stone
Sale price¥39,800
Colombian Trapiche emerald 0.611ct rough stone
Sale price¥69,800
Colombian Trapiche emerald 0.418ct rough stone
Sale price¥39,800
Brazilian Paraiba Tourmaline 0.405ct loose stone (CuO2.7% CuO2.2%) GIA
Sale price¥198,000
Colombian Trapiche Emerald (Reverse Trapiche) 0.073ct Rough Stone
Sale price¥8,800
Colombian trapiche emerald (reverse trapiche) 0.078ct rough stone
Sale price¥7,980
Colombian trapiche emerald (reverse trapiche) 0.152ct rough stone
Sale price¥17,800
Colombian Trapiche Emerald (Reverse Trapiche) 0.111ct Rough Stone
Sale price¥12,800
Colombian Trapiche Emerald (Reverse Trapiche) 0.183ct Rough Stone
Sale price¥18,800
Australian black opal 0.410ct loose stone
Sale price¥15,800
Colombian emerald with pyrite 0.248ct rough stone
Sale price¥12,800
Colombian oil-free emerald 0.310ct loose stone
Sale price¥298,000
Brazilian alexandrite 0.061ct loose
Sale price¥12,800
Brazilian alexandrite 0.058ct loose
Sale price¥12,800
Brazilian alexandrite 0.051ct loose
Sale price¥11,000
Brazilian alexandrite 0.060ct loose
Sale price¥12,800
Russian Demantoid Garnet (Horsetail) 2.9mm/0.194ct Loose Stone
Sale price¥29,800
Kenyan Tsavorite 0.379ct loose stone
Sale price¥35,800
Green tourmaline 0.621ct loose stone
Sale price¥9,800
Green tourmaline 0.457ct loose stone
Sale price¥9,800
Synthetic Moissanite 7.999ct loose stone
Sale price¥39,800
Nigerian Star Enstatite 0.880ct Loose Stone
Sale price¥14,800
Synthetic Moissanite 8.931ct loose stone
Sale price¥55,800
Tanzanian Kornerupine Cat's Eye 1.331ct Loose Stone
Sale price¥7,980
Afghanistan indigolite tourmaline 1.732ct loose stone
Sale price¥15,800
Afghanistan indigolite tourmaline 1.729ct loose stone
Sale price¥15,800
Green Sapphire 0.299ct Loose (Silky Sapphire)
Sale price¥3,980
Tanzanian Kornerupine Cat's Eye 0.986ct Loose Stone
Sale price¥6,980
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.