Brazilian Paraiba Tourmaline in Quartz 7.9mm/1.133ct Loose Stone
Sale price¥22,800
Brazilian Paraiba Tourmaline in Quartz 1.530ct Loose Stone
Sale price¥29,800
Brazilian Paraiba Tourmaline in Quartz 3.046ct loose stone
Sale price¥45,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.309ct Loose Stone
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 4.3mm/0.292ct Loose Stone
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.328ct Loose Stone
Sale price¥12,800
Sri Lankan Rhodolite Garnet 1.858ct Loose Stone
Sale price¥15,800
Mozambique Almandine Garnet 0.965ct Loose Stone
Sale price¥12,800
Tanzanian Kornerupine 0.616ct loose stone
Sale price¥49,800
Tanzanian Kornerupine 0.500ct Loose Stone
Sale price¥39,800
Kunzite from Afghanistan 1.857ct loose stone
Sale price¥18,800
Indian Star Garnet 13.260ct Loose Stone (6 Rows)
Sale price¥5,980
Russian Demantoid Garnet (Horsetail Recognized) 5.1mm/0.664ct Loose Stone
Sale price¥188,000
Synthetic Black Opal 5.013ct Loose
Sale price¥59,800
Russian Demantoid Garnet 3.0mm/0.194ct Loose Stone
Sale price¥18,800
Garden quartz 8.690ct loose
Sale price¥2,980
Indian Star Garnet 11.440ct Loose Stone (6 Rows)
Sale price¥5,980
Mexican Cantera Opal 18.00ct Loose
Sale price¥29,800
![[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)
Tanzanian Almandine Garnet 1.190ct Loose Stone
Sale price¥12,800
Brazilian Dumortierite in Quartz 0.578ct loose stone (faceted cut)
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.482ct loose stone (faceted cut)
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.652ct loose stone (faceted cut)
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.313ct loose stone (faceted cut)
Sale price¥6,980
Brazilian Dumortierite in Quartz 0.154ct loose stone (faceted cut)
Sale price¥9,800
![[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)
Brazilian Dumortierite in Quartz 55.207ct Rough Stone
Sale price¥8,800
Brazilian Paraiba tourmaline in quartz 3.678ct loose
Sale price¥9,800
Russian demantoid garnet (horsetail recognized) 5.5mm/0.710ct loose
Sale price¥148,000
Russian demantoid garnet (horsetail recognized) 5.3mm/0.692ct loose
Sale price¥128,000
Brazilian Garden Quartz 15.7mm/12.860ct Loose Stone
Sale price¥4,980
Brazilian Dumortierite in Quartz 2.484ct loose stone
Sale price¥9,800
Brazilian pyrope almandine garnet 0.925ct loose stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.368ct loose stone
Sale price¥12,800
Tanzanian Rhodolite Garnet 0.627ct Loose Stone
Sale price¥8,800
Zambian Canary Yellow Tourmaline 0.25ct Loose Stone
Sale price¥9,800
Madagascar Grandidierite 0.180ct loose stone
Sale price¥14,800
Brazilian Paraiba tourmaline in quartz 2.864ct loose
Sale price¥9,800
1.710ct loose orange kyanite from Tanzania
Sale price¥9,800
Orange Kyanite from Tanzania 1.070ct loose stone
Sale price¥7,980
[Rouge cut] Mozambique almandine garnet 0.954ct loose 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.