Australian Black Opal 0.754ct Loose
Sale price¥22,800
Australian Black Opal 0.768ct Loose
Sale price¥25,800
Australian Black Opal 0.956ct Loose Stone
Sale price¥39,800
Australian black opal 0.758ct loose stone
Sale price¥35,800
Bicolor Tourmaline 0.649ct Loose Stone, Japan-Germany
Sale price¥12,800
Indian Black Moonstone 0.609ct Loose
Sale price¥7,980
Brazilian Dumortierite in Quartz 0.699ct Loose Stone
Sale price¥6,980
Brazilian Dumortierite in Quartz 0.910ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.642ct Loose Stone
Sale price¥8,800
Brazilian dumortierite in quartz, 0.813 ct, loose
Sale price¥9,800
Brazilian dumortierite in quartz, 0.796 ct, loose
Sale price¥7,980
Brazilian Dumortierite in Quartz 0.543ct Loose Stone
Sale price¥5,980
Oregon Sunstone from the United States, 6.1mm/0.820ct loose stone
Sale price¥16,800
Brazilian Blue Tourmaline 0.819ct Loose Stone
Sale price¥31,800
Australian rainbow lattice sunstone 0.587ct loose
Sale price¥4,980
Montana Sapphire 0.515ct loose (bicolor sapphire)
Sale price¥15,800
Mali Garnet (Grossular/Andradite Garnet) 0.675ct Loose Stone
Sale price¥15,800
Brazilian Sky Blue Topaz 0.746ct Loose Stone
Sale price¥8,800
0.834 ct loose Sky Blue Topaz from Brazil
Sale price¥8,800
Australian Rainbow Lattice Sunstone 0.657ct Loose Gemstone
Sale price¥13,800
Spanish Sphalerite 5.7mm/0.903ct Loose
Sale price¥16,800
Russian Demantoid Garnet (Horsetail) 5.8mm/0.851ct Loose Stone
Sale price¥198,000
Pink tourmaline 0.669ct loose
Sale price¥8,800
Strawberry quartz from Kazakhstan 0.977ct loose
Sale price¥5,980
Strawberry quartz from Kazakhstan 0.803ct loose
Sale price¥5,980
Strawberry quartz from Kazakhstan 0.773ct loose
Sale price¥5,980
Strawberry quartz from Kazakhstan 0.815ct loose
Sale price¥5,980
Diamond 0.777ct loose (butterfly cut)
Sale price¥69,800
Brazilian Dumortierite in Quartz 0.803ct Loose
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.849ct Loose Gemstone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.867ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.880ct Loose Stone (Faceted Cut)
Sale price¥9,800
0.787 ct faceted Dumortierite in Quartz from Brazil
Sale price¥7,980
Brazilian Dumortierite in Quartz 0.690ct Loose Stone (Faceted Cut)
Sale price¥6,980
Brazilian Dumortierite in Quartz 0.937ct Loose (Faceted)
Sale price¥9,800
South African Sugilite 0.793ct loose stone
Sale price¥12,800
South African Sugilite 0.908ct loose stone
Sale price¥14,800
Synthetic rutile 5.1mm/0.877ct loose stone
Sale price¥12,800
Synthetic Rutile 0.554ct Loose
Sale price¥8,800
Mexican fire opal, 0.733 ct, loose
Sale price¥29,800
US Peridot 0.632ct Loose Stone
Sale price¥9,800
Tanzanian Rhodolite Garnet 0.763ct Loose Stone
Sale price¥9,800
Mozambique Almandine Garnet 4.8nmm/0.545ct Loose Stone
Sale price¥8,800
0.521ct Loose Brazilian London Blue Topaz
Sale price¥6,980
American Peridot 0.643ct Loose Stone
Sale price¥12,800
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.