Sri Lankan pink star sapphire 1.021ct loose stone
Sale price¥11,000
Brazilian bicolor tourmaline 1.660ct loose stone
Sale price¥29,800
Tanzanian bicolor tanzanite 1.644ct rough and loose stone set of 2
Sale price¥8,800
Mexican Opal 8.8mm/1.640ct Loose
Sale price¥29,800
Brazilian bicolor tourmaline 1.020ct loose stone
Sale price¥19,800
Brazilian bicolor tourmaline 1.020ct loose stone
Sale price¥15,800
Mexican Fire Opal 8.0mm/1.270ct Loose
Sale price¥29,800
Tanzanian Yellow Beryl 1.750ct Loose Stone
Sale price¥15,800
Mexican Fire Opal 1.755ct Loose
Sale price¥29,800
Mexican Fire Opal 1.341ct Loose
Sale price¥39,800
Indian Moonstone 8.2mm/1.823ct Loose
Sale price¥14,800
Brazilian bicolor tourmaline 1.177ct loose stone
Sale price¥12,800
Colombian Trapiche Emerald 1.341ct Loose
Sale price¥6,980
Tanzanian Blue Spinel 1.028ct Loose Stone
Sale price¥39,800
Non-Oil Emerald 1.070ct Loose Gübelin Certificate
Sale price¥698,000
Tanzanite from Tanzania 1.36ct loose stone
Sale price¥49,800
Color shift amethyst 1.216ct loose stone
Sale price¥8,800
Madagascar Apatite 1.038ct Loose
Sale price¥12,800
Madagascar sphene 1.386ct loose stone
Sale price¥12,800
Spanish Sphalerite 7mm/1.676ct loose stone
Sale price¥35,800
Brazilian Morganite 1.296ct loose stone
Sale price¥8,800
Pakistan Ruby in Quartz 1.429ct Loose Stone
Sale price¥12,800
YAG (Yttrium Aluminum Garnet) 7.0mm/1.772ct loose stone
Sale price¥9,800
Brazilian bicolor tourmaline 1.209ct loose stone
Sale price¥9,800
Brazilian bicolor tourmaline 1.910ct loose stone
Sale price¥25,800
Brazilian bicolor tourmaline 1.540ct loose stone
Sale price¥25,800
Brazilian Rubellite (Red Tourmaline) 1.525ct Loose Stone
Sale price¥39,800
Kyanite 1.042ct loose (commonly known as Paraiba color kyanite)
Sale price¥8,800
Cambodian colorless zircon 1.212ct loose stone
Sale price¥15,800
Brazilian Petalite 1.654ct loose stone
Sale price¥9,800
Mexican Cantera Opal 1.534ct Loose
Sale price¥8,800
Tanzanite from Tanzania 1.522ct loose stone
Sale price¥55,800
Dominican Republic Conch Pearl 1.60ct Loose
Sale price¥39,800
Mozambique Rubellite 1.706ct Loose Stone
Sale price¥39,800
Andesine Labradorite (also known as Blue Moonstone) 1.096ct loose stone
Sale price¥45,800
Brazilian Paraiba Tourmaline in Quartz 1.146ct Loose Stone
Sale price¥29,800
Brazilian Paraiba Tourmaline in Quartz 8.0mm/1.287ct Loose Stone
Sale price¥29,800
Brazilian Paraiba Tourmaline in Quartz 7.9mm/1.314ct Loose Stone
Sale price¥29,800
Ethiopian Opal 1.433ct Loose
Sale price¥3,980
YAG (Yttrium Aluminum Garnet) 7.1mm/1.709ct loose stone
Sale price¥12,800
Tibetan bicolor andesine 1.542ct loose stone
Sale price¥14,800
Indian Cavansite 1.717ct loose stone
Sale price¥8,800
Colombian Trapiche Emerald 1.494ct Loose
Sale price¥69,800
Non-Oil Emerald 1.030ct Loose Gübelin Gübelin Certificate
Sale price¥698,000
Colombian emerald 1.321ct loose stone (partly trapiche emerald)
Sale price¥98,000
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.