Brazilian Green Tourmaline 11.453ct Loose Stone
Sale price¥158,000
Brazilian Green Tourmaline 9.495ct Loose
Sale price¥128,000
Nigerian Green Beryl 1.349ct Loose Stone
Sale price¥98,000
Brazilian parti-color tourmaline 2.702ct loose stone
Sale price¥69,800
Australian black opal 9.709ct loose stone
Sale price¥158,000
Brazilian Rubellite 3.845ct loose stone
Sale price¥198,000
Japanese style twin crystal 5.771ct raw stone
Sale price¥19,800
Japanese style twin crystal 4.727ct raw stone
Sale price¥15,800
Japanese style twin crystal 4.715ct raw stone
Sale price¥15,800
Japanese style twin crystal 3.472ct raw stone
Sale price¥9,800
#202510 Campaign Shortage Bicolor Tourmaline 3.468ct Loose
Sale price¥6,980
Brazilian Morganite 4.720ct loose stone
Sale price¥98,000
Mexican Cantera Opal 4.835ct Loose
Sale price¥19,800
Brazilian Dolomite 4.070ct Loose Stone, Japan-Germany Mirror
Sale price¥98,000
Colombian emerald 1.435ct rough stone
Sale price¥18,800
Colombian pyrite emerald 13.691ct loose stone
Sale price¥398,000
Brazilian Green Tourmaline 26.071ct Loose Stone (Sugarloaf Cut)
Sale price¥298,000
Brazilian bicolor tourmaline 6.928ct loose stone (bicolor blue tourmaline)
Sale price¥298,000
Australian Shell Opal (Shell Opal) 73.321ct Rough Stone
Sale price¥49,800
Brazilian rutilated quartz (rutilated quartz) 8.247ct loose stone
Sale price¥14,800
Sri Lankan glass body (sapphire crystal) 7.983ct rough stone
Sale price¥29,800
Sri Lankan glass body (sapphire crystal) 10.140ct rough stone
Sale price¥29,800
Green Fluorite 38.074ct Loose
Sale price¥158,000
Brazilian Flower Rutile in Quartz 3.312ct Loose Stone
Sale price¥15,800
Brazilian Tourmaline (untreated) 5.120ct loose stone
Sale price¥39,800
Brazilian Yellow Beryl 11.411ct Loose Stone, Japan-Germany Exchange
Sale price¥25,800
Mexican Cantera Opal 20.655ct Loose
Sale price¥19,800
Mexican Cantera Opal 5.204ct Loose
Sale price¥12,800
Brazilian Green Tourmaline 12.252ct Loose Stone
Sale price¥398,000
Colombian pyrite in emerald 6.415ct loose stone
Sale price¥298,000
Brazilian Flower Rutile in Quartz 5.122ct Loose Stone
Sale price¥9,800
Brazilian Dendritic Agate 3.575ct Loose Stone
Sale price¥9,800
Montana Agate 9.528ct Loose
Sale price¥9,800
Mexican Cantera Opal 7.720ct Loose
Sale price¥22,800
Mexican Cantera Opal 4.158ct Loose
Sale price¥15,800
Australian black opal 3.242ct loose stone
Sale price¥69,800
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.