Twin star sapphire from Sri Lanka 2.523ct loose
Sale price¥98,000
Twin chrysoberyl cat's eye 0.591ct loose
Sale price¥69,800
Pink amethyst 3.496ct loose
Sale price¥6,980
Myanmar Purple Spinel 1.364ct Loose Stone
Sale price¥29,800
Chrysoberyl cat's eye 2.843ct loose
Sale price¥39,800
Rubellite 0.549ct loose
Sale price¥19,800
Yellow tourmaline 0.277ct loose
Sale price¥8,800
Green tourmaline 1.687ct loose
Sale price¥15,800
Pink tourmaline 0.669ct loose
Sale price¥9,800
Green tourmaline 2.007ct loose
Sale price¥29,800
Green tourmaline 2.144ct loose
Sale price¥25,800
Bicolor Tourmaline 9.0mm/2.507ct Loose
Sale price¥29,800
Green tourmaline 3.334ct loose
Sale price¥25,800
Green tourmaline 0.559ct loose
Sale price¥6,980
Pink tourmaline 0.632ct loose
Sale price¥9,800
Pink tourmaline 1.575ct loose
Sale price¥14,800
Pink tourmaline 0.341ct loose
Sale price¥8,800
Green tourmaline 0.388ct loose
Sale price¥8,800
Green tourmaline 1.258ct loose
Sale price¥29,800
Cambodian Blue Zircon 1.895ct Loose
Sale price¥19,800
Cambodian Blue Zircon 1.205ct Loose
Sale price¥18,800
Aventurine aquamarine 1.022ct loose
Sale price¥6,980
Aventurine aquamarine 0.840ct loose
Sale price¥8,800
Oregon Sunstone 0.513ct loose
Sale price¥6,980
Mexican Hyalite Opal 0.774ct Loose (Faceted Cut)
Sale price¥8,800
Mexican Hyalite Opal 7.5mm/1.221ct Loose (Faceted Cut)
Sale price¥14,800
Sky blue topaz 5.595ct loose
Sale price¥18,800
Green tourmaline 6.069ct loose (marron cut) Japanese-German book
Sale price¥69,800
Pt900 benitoite 0.135ct/diamond ring
Sale price¥128,000
K18YG American Benitoite 0.17ct Brazilian Paraiba Tourmaline Ring
Sale price¥128,000
Johachidolite from Myanmar 0.332ct loose
Sale price¥39,800
Bicolor star sapphire from Myanmar 0.920ct loose
Sale price¥39,800
Gray diamond 1.247ct loose
Sale price¥228,000
Gray diamond 0.618ct loose
Sale price¥128,000
Paraiba tourmaline from Brazil 0.129ct loose (Cu:0.6%,MnO:0.9%)
Sale price¥29,800
Pink diamond 0.030ct loose (FANCY PURPLE PINK, SI2)
Sale price¥29,800
Pink diamond 0.086ct loose (FANCY INTENSE PURPLE PINK, I1)
Sale price¥138,000
Pink diamond 0.070ct loose (FANCY INTENSE PURPLE PINK, I1)
Sale price¥118,000
Bicolor tourmaline 3.242ct rough stone from Afghanistan
Sale price¥9,800
Amethyst 39.112ct raw stone from Zambia
Sale price¥8,800
Amethyst 29.357ct raw stone from Zambia
Sale price¥6,580
Amethyst 30.312ct raw stone from Zambia
Sale price¥6,580
Labradorite (Spectrolite) from Finland 6.335ct loose
Sale price¥5,980
Labradorite (Spectrolite) from Finland 6.313ct loose
Sale price¥5,980
Labradorite (Spectrolite) from Finland 5.261ct loose
Sale price¥6,980
Labradorite (Spectrolite) from Finland 4.747ct loose
Sale price¥6,980
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.