Rough diamond (makeable) 0.353ct loose
Sale price¥25,800
Rough diamond (makeable) 0.279ct loose
Sale price¥25,800
Bicolor Benitoite 0.624ct Loose Japanese-German Edition
Sale price¥188,000
[Sakura Incut] Sky Blue Topaz 12mm Loose with Patch
Sale price¥39,800
Rose quartz 15mm/10.850ct loose
Sale price¥3,980
Brazilian alexandrite 0.102ct loose
Sale price¥15,800
Brazilian alexandrite 0.091ct loose
Sale price¥15,800
Larimar 33.829ct loose Japanese-German book
Sale price¥39,800
![Limited to 7 stones: Brazilian Limonite in Quartz, 1 loose stone (average 6 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_10790d8c-055f-404e-b91b-4dc8a6f1ff16.png?v=1756029326&width=2000)
0.466ct Saffron Loose Stone with Certificate of Authenticity
Sale price¥37,800
Royal blue sapphire 1.220ct loose stone
Sale price¥298,000
Padparadscha sapphire 0.220ct loose stone
Sale price¥34,800
Cornflower blue sapphire 0.490ct loose stone
Sale price¥98,000
1.483ct blue sapphire loose stone
Sale price¥98,000
Pigeon Blood Ruby 0.280ct Loose
Sale price¥49,800
[12559903] 2.991ct Brazilian Imperial Topaz Loose Stone
Sale price¥158,000
Pigeon Blood Ruby 0.340ct Loose
Sale price¥59,800
[12560244] Bicolor Zoisite 0.508ct Loose Stone
Sale price¥7,980
[12560246] Green Zoisite 1.316ct Loose Stone
Sale price¥15,800
Colombian mint-colored emerald, 4.3mm/0.306ct loose stone
Sale price¥8,800
[12560252] Zambian emerald 0.138ct loose stone
Sale price¥8,800
Red spinel 0.346ct loose stone
Sale price¥22,800
Myanmar Leuco Garnet 4.0mm/0.371ct Loose Stone
Sale price¥39,800
Bicolor sapphire 0.334ct loose
Sale price¥9,800
Bicolor sapphire 0.149ct loose
Sale price¥6,980
Bicolor sapphire 0.323ct loose
Sale price¥9,800
California Axinite 1.150ct Loose Stone (Phantom Cut)
Sale price¥8,800
Fluorite 1.420ct loose stone
Sale price¥3,980
Afghanite 0.210ct loose
Sale price¥6,980
Diamond 0.054ct loose (VS class equivalent, emerald cut)
Sale price¥8,800
Malaya garnet 0.972ct loose
Sale price¥9,800
Colombian emerald cat's eye 0.112ct loose
Sale price¥9,800
Colombian emerald cat's eye 0.094ct loose
Sale price¥8,800
Paraiba tourmaline from Brazil 0.054ct loose (CuO:1.2%, MnO:3.1%)
Sale price¥15,800
Paraiba tourmaline from Brazil 0.353ct loose (CuO:0.8%, Mn:3.4%)
Sale price¥39,800
White sapphire 0.464ct loose
Sale price¥9,800
White sapphire 0.418ct loose
Sale price¥12,800
Yellow sapphire 0.385ct loose
Sale price¥9,800
White sapphire 0.364ct loose
Sale price¥9,800
White sapphire 0.271ct loose
Sale price¥7,980
White sapphire 0.212ct loose
Sale price¥6,980
White sapphire 4.5mm/0.462ct loose
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.