Brazilian Tourmaline (untreated) 5.120ct loose stone
Sale price¥39,800
Brazilian Euclase 0.213ct loose stone (bicolor Euclase)
Sale price¥15,800
Namibian Jeremejevite 0.307ct loose stone by Nikkei
Sale price¥22,800
American Benitoite 0.084ct loose stone (colorless Benitoite)
Sale price¥12,800
Brazilian Euclase 0.289ct loose stone
Sale price¥12,800
Brazilian Euclase 0.263ct Loose Stone (Colorless Euclase)
Sale price¥9,800
Brazilian Euclase 0.695ct Loose Stone
Sale price¥18,800
Brazilian Dendritic Agate 3.575ct Loose Stone
Sale price¥9,800
Russian rough diamond (sawable) 0.088ct loose
Sale price¥22,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 0.344ct Loose Stone
Sale price¥12,800
Russian Diamond Rough (Sawable) 0.103ct Loose (Trigon)
Sale price¥25,800
American Herkimer Diamond (Rock Crystal) 5.5mm/0.528ct Loose
Sale price¥8,800
Goshenite 5.7mm/0.572ct loose stone
Sale price¥5,980
YAG (Yttrium Aluminum Garnet) 4.9mm/0.574ct loose stone
Sale price¥8,800
YAG (Yttrium Aluminum Garnet) 5.0mm/0.672ct loose stone
Sale price¥9,800
Synthetic rutile 0.942ct loose stone
Sale price¥14,800
Synthetic Opal 1.804ct Loose
Sale price¥14,800
YAG (Yttrium Aluminum Garnet) 4.1mm/0.346ct Loose Stone (Rose Cut)
Sale price¥8,800
YAG (Yttrium Aluminum Garnet) 3.3mm/0.208ct Loose Stone (Rose Cut)
Sale price¥5,980
Russian rough diamond (sawable) 0.101ct loose
Sale price¥25,800
Pakistani Oil in Quartz 0.438ct Loose Stone
Sale price¥9,800
Diamond 3.4mm/0.144ct loose stone (I, VS1, Good)
Sale price¥16,800
Benitoite 1.8mm/0.025ct loose stone (colorless benitoite)
Sale price¥12,800
Benitoite 1.8mm/0.025ct loose stone (colorless benitoite)
Sale price¥15,800
Mica in Quartz 0.980ct Loose
Sale price¥6,980
Mica in Quartz 0.834ct Loose Stone
Sale price¥6,980
Mica in Quartz 0.544ct Loose Stone
Sale price¥6,980
Mexican egg-in-opal 0.627ct loose stone
Sale price¥8,800
Ethiopian Opal 0.466ct Loose (Heart Shape, Faceted Cut)
Sale price¥3,980
Ethiopian Opal 0.294ct Loose (Heart Shape, Faceted Cut)
Sale price¥6,980
American Herkimer Diamond (Rock Crystal) 5.5mm/0.534ct Loose
Sale price¥8,800
American Herkimer Diamond (Rock Crystal) 5.3mm/0.594ct Loose
Sale price¥8,800
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.