![[On sale from 22:00 on 5/1] Mali Garnet (Grossular/Andradite Garnet) 4.2mm/0.398ct Loose Stone with Certificate of Authenticity from the Republic of Mali](http://store.karatz.jp/cdn/shop/files/P3137639_0e3bd582-8297-4c0c-9bf5-09a61c159ace.jpg?v=1749163154&width=2881)
Mexican Hyalite Opal 5.0mm/0.378ct Loose Stone
Sale price¥11,000
Mexican Hyalite Opal 5.2mm/0.439ct Loose Stone
Sale price¥12,800
Indian Moss Agate 0.75ct Loose Stone
Sale price¥8,800
Brazilian Dumortierite in Quartz 2.484ct loose stone
Sale price¥9,800
Indian Moss Agate 0.755ct Loose Stone (Princess Cut)
Sale price¥8,800
Pakistani bicolor sphene 3.980ct loose stone
Sale price¥188,000
![[Koshu Precious Stone Cutting] Fluorite in Quartz 6.420ct Loose Stone [Collaboration] Patch](http://store.karatz.jp/cdn/shop/files/collage_3269a09e-f7e8-4625-a34c-9b27a3584d4b.png?v=1746103198&width=2000)
Euclase from Colombia 2.443ct Ruth Japanese German edition
Sale price¥148,000
Brazilian Green Spodumene 7.9mm/1.721ct Loose Stone
Sale price¥8,800
Sapphire 0.328ct loose stone
Sale price¥12,800
Brazilian Petalite 1.659ct loose stone
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.209ct Loose
Sale price¥15,800
Brazilian rhodonite 1.277ct loose stone
Sale price¥8,800
Brazilian Dumortierite in Quartz 0.482ct loose stone (faceted cut)
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.578ct loose stone (faceted cut)
Sale price¥5,980
Australian Opal 0.371ct Loose
Sale price¥8,800
Mexican Fire Opal 1.320ct Loose
Sale price¥13,800
Montana Agate 6.534ct Loose Stone
Sale price¥6,980
Brazilian pyrope almandine garnet 0.925ct loose stone
Sale price¥9,800
Brazilian Madeira Citrine 0.564ct Loose Stone
Sale price¥8,800
Brazilian Dumortierite in Quartz 0.368ct loose stone
Sale price¥12,800
Brazilian Aquamarine 0.546ct Loose Stone
Sale price¥8,800
Indian Moss Agate 0.601ct Loose Stone
Sale price¥8,800
Indian Moss Agate 0.387ct Loose Stone
Sale price¥8,800
Pt950 Sri Lankan cobalt spinel 0.697ct ring by Nikkei
Sale price¥98,000
Mexican Cantera Opal 18.00ct Loose
Sale price¥29,800
Indian Star Garnet 11.440ct Loose Stone (6 Rows)
Sale price¥5,980
Myanmar Star Enstatite 0.870ct Loose Stone
Sale price¥14,800
Euclase from Colombia 5.223ct Ruth Japanese German edition
Sale price¥198,000
Pakistani Veirinite 0.157ct loose stone with certificate
Sale price¥39,800
Pakistani Veirinite 0.173ct loose stone with certificate
Sale price¥45,800
Garden quartz 8.690ct loose
Sale price¥2,980
Brazilian Dumortierite in Quartz 0.313ct loose stone (faceted cut)
Sale price¥6,980
Brazilian Dumortierite in Quartz 0.652ct loose stone (faceted cut)
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.154ct loose stone (faceted cut)
Sale price¥9,800
Australian Opal 0.633ct 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.