Bicolor sapphire from Madagascar 0.252ct loose
Sale price¥14,800
Bicolor sapphire from Madagascar 0.259ct loose
Sale price¥9,800
Bicolor sapphire from Madagascar 0.198ct loose
Sale price¥9,800
Bicolor sapphire from Madagascar 0.212ct loose
Sale price¥9,800
Mexican water opal 0.212ct loose (contrarus opal)
Sale price¥39,800
Yellow sapphire from Sri Lanka 0.222ct loose
Sale price¥12,800
Goshenite 1.620ct loose
Sale price¥22,800
Goshenite 1.989ct loose
Sale price¥25,800
[Koshu precious stone Kiriko plusthree] Swiss blue topaz 26.821ct loose
Sale price¥59,800
Dendritic Agate 2.964ct loose
Sale price¥15,800
Diaspore 1.209ct loose from Türkiye
Sale price¥21,800
Diaspore from Türkiye 0.858ct loose
Sale price¥21,800
Diaspore from Türkiye 0.636ct loose
Sale price¥15,800
Brazilian kyanite in quartz 13.740ct loose
Sale price¥45,800
Brazilian kyanite in quartz 4.770ct loose
Sale price¥16,800
Chinese aragonite 36.409ct loose with patch
Sale price¥7,980
Brazilian Trapichea Amethyst 24.772ct loose with patch
Sale price¥8,800
Tourmaline cat's eye 0.910ct loose
Sale price¥6,980
Sphene from Madagascar 0.761ct loose
Sale price¥12,800
Montebrasite 0.373ct loose
Sale price¥9,800
Opal 6mm/0.595ct loose (rose cut)
Sale price¥9,800
Brazilian dumortierite in quartz 3.901ct loose
Sale price¥19,800
Brazilian Medusa Quartz (Paraiba Quartz) 6.954ct loose
Sale price¥17,800
Cambodian blue zircon 1.179ct loose
Sale price¥7,980
Citrine 0.833ct loose stone
Sale price¥3,980
Brazilian citrine 1.216ct loose stone
Sale price¥4,980
Bicolor Zoisite 1.210ct loose
Sale price¥19,800
Amethyst 8.044ct loose
Sale price¥6,980
Danburite 1.427ct loose stone
Sale price¥5,980
Aquamarine cat's eye 3.528ct loose
Sale price¥5,980
Mexican fire agate 3.800ct loose
Sale price¥5,980
Unheated silky pink sapphire from Vietnam 0.197ct loose
Sale price¥12,800
Unheated silky pink sapphire from Vietnam 0.247ct loose
Sale price¥12,800
Brazilian Lazurite (Celestite) 0.226ct Ruth Japanese-German Edition
Sale price¥98,000
Star garnet 14.600ct loose
Sale price¥11,000
Brazilian Medusa Quartz (Paraiba Quartz) 10.298ct loose
Sale price¥14,800
Brazilian Medusa Quartz (Paraiba Quartz) 5.809ct loose
Sale price¥8,800
Brazilian Medusa Quartz (Paraiba Quartz) 3.441ct loose
Sale price¥5,980
Brazilian Medusa Quartz (Paraiba Quartz) 2.757ct loose
Sale price¥5,980
Brazilian dumortierite in quartz 9.490ct loose
Sale price¥25,800
Brazilian dumortierite in quartz 4.263ct loose
Sale price¥12,800
Brazilian dumortierite in quartz 4.180ct loose
Sale price¥12,800
Mexican Hyalite Opal 2.592ct loose
Sale price¥9,800
Russian demantoid garnet (horsetail recognized) 3.7mm/0.231ct loose
Sale price¥22,800
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.