YAG (Yttrium Aluminum Garnet) 3.3mm/0.208ct Loose Stone (Rose Cut)
Sale price¥5,980
Mexican Fire Opal 0.718ct Loose
Sale price¥9,800
Mexican Fire Opal 0.593ct Loose (Faceted Cut)
Sale price¥9,800
Almandine Garnet 0.660ct Loose
Sale price¥6,980
Indian Moonstone 8mm/1.879ct Loose
Sale price¥6,980
Nigerian bicolor tourmaline 0.379ct loose stone
Sale price¥8,800
Tanzanian green sapphire 0.303ct loose stone
Sale price¥9,800
Tanzania Purple Zoisite 0.863ct Rough Stone
Sale price¥8,800
Colombian mint color emerald 0.297ct loose stone
Sale price¥9,800
Additional charge: K18YG (base metal) + 10,000 yen
Sale price¥7,000
Additional charge: K18YG (base metal) + 10,000 yen
Sale price¥7,000
Pakistani Oil in Quartz 0.438ct Loose Stone
Sale price¥9,800
Sky blue topaz 1.719ct loose stone
Sale price¥9,800
Vietnam Aquamarine 0.398ct Loose
Sale price¥6,980
Vietnam Aquamarine 0.494ct Loose Stone
Sale price¥8,800
Brazilian Blue Tourmaline 0.196ct Loose
Sale price¥8,800
Cambodian Blue Zircon 0.744ct Loose Stone
Sale price¥8,800
Morganite 0.379ct loose stone
Sale price¥8,800
Additional charge for resizing: 8,000 yen
Sale price¥8,000
Mexican Opal 0.677ct Loose
Sale price¥6,980
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 0.294ct Loose (Heart Shape, Faceted Cut)
Sale price¥6,980
Montana Sapphire 0.254ct loose
Sale price¥9,800
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
Tanzanian Kornerupine Cat's Eye 0.866ct Loose Stone
Sale price¥5,980
Tanzanian Kornerupine Cat's Eye 1.539ct Loose Stone
Sale price¥9,800
Purple Spinel 4.8mm/0.422ct Loose Stone
Sale price¥6,980
Pink spinel 5.2mm/0.573ct loose stone
Sale price¥6,580
Pink spinel 4.3mm/0.342ct loose
Sale price¥6,980
Pink spinel 3.8mm/0.192ct loose
Sale price¥5,980
Purple spinel 0.465ct loose
Sale price¥5,980
Amethyst 3.090ct loose
Sale price¥6,980
Color change sapphire 0.453ct loose
Sale price¥5,980
Pezzotite from Madagascar 0.128ct loose
Sale price¥6,980
Pezzottite from Madagascar 0.142ct loose
Sale price¥9,800
Pezzottite from Madagascar 0.115ct loose
Sale price¥5,980
Pezzotite from Madagascar 0.129ct loose
Sale price¥6,980
Pezzottite from Madagascar 0.087ct loose
Sale price¥6,980
Brazilian dumortierite in quartz 0.731ct loose
Sale price¥8,800
Brazilian dumortierite in quartz 0.496ct loose
Sale price¥6,580
Brazilian dumortierite in quartz 0.506ct loose
Sale price¥7,980
Australian black opal 0.310ct loose
Sale price¥8,800
Diamond 0.534ct rough stone
Sale price¥9,800
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.