Brazilian Flower Quartz 6.582ct Loose Stone
Sale price¥16,800
Ethiopian honeycomb opal 3.566ct loose stone
Sale price¥46,800
[Koshu Precious Stones plusthree] Citrine 5.121ct Loose
Sale price¥39,800
![[Koshu Precious Stones Plusthree] Tibetan Andesine 7.873ct [Collaboration] Loose Stone (Color Change Andesine)](http://store.karatz.jp/cdn/shop/files/collage_4f5b4421-c714-46aa-aee2-16359b25e490.png?v=1714140601&width=2000)
Cristobalite in Quartz 2.417ct Loose Stone
Sale price¥12,800
Brazilian Aquamarine 0.874ct Loose Stone (Phantom Cut)
Sale price¥8,800
American Euperlite 50.042ct rough stone
Sale price¥3,980
Brazilian Morganite 3.929ct loose stone
Sale price¥19,800
Brazilian Morganite 7.339ct loose stone
Sale price¥39,800
Mexican Fire Opal 1.833ct Loose
Sale price¥49,800
Ethiopian Opal 2.131ct Loose
Sale price¥12,800
Indian Cavansite 105.482ct rough stone
Sale price¥9,800
Australian black opal 2.407ct loose
Sale price¥59,800
Mexican Fire Opal 1.743ct Loose
Sale price¥24,800
Mexican Fire Opal 3.425ct Loose
Sale price¥29,800
[Cat cut] Dendritic agate 13.569ct loose stone
Sale price¥12,800
[Cat cut] Dendritic agate 6.757ct loose stone
Sale price¥12,800
Synthetic Moissanite 7.999ct loose stone
Sale price¥39,800
Synthetic Moissanite 8.931ct loose stone
Sale price¥55,800
Synthetic Moissanite 4.924ct loose stone
Sale price¥39,800
Mexican Cantera Opal 15.195ct Loose
Sale price¥18,800
Brazilian Paraiba tourmaline in quartz 4.772ct loose
Sale price¥59,800
Brazilian Limonite in Topaz 6.579ct loose stone (with rainbow)
Sale price¥19,800
Brazilian Medusa Quartz (Paraiba Quartz) 3.122ct Loose Stone
Sale price¥15,800
Brazilian Medusa Quartz (Paraiba Quartz) 1.529ct Loose Stone
Sale price¥6,980
Brazilian dendritic quartz 3.608ct loose stone
Sale price¥9,800
Lepidocrocite in quartz 1.087ct loose
Sale price¥6,980
Sky blue topaz 10.967ct loose
Sale price¥19,800
Colombian Euclase 24.491ct Ruth Medium Treasure Guide
Sale price¥498,000
Brazilian Medusa Quartz (Paraiba Quartz) 2.484ct loose stone
Sale price¥39,800
Brazilian Quartz in Quartz 14.298ct Loose Stone
Sale price¥25,800
Bicolor Tourmaline 0.649ct Loose Stone, Japan-Germany
Sale price¥9,800
[Sakura Incut] Smoky Quartz 22mm/27.511ct Loose Japanese-German Edition
Sale price¥98,000
[Camellia Cut] Ametrine 14mm/8.308ct Loose Stone
Sale price¥89,800
Oregon Sunstone 8.256ct rough stone
Sale price¥15,800
Indian Cavansite 240.461ct rough stone
Sale price¥9,800
Indian Cavansite 246.106ct rough stone
Sale price¥9,800
508ct rough cabansite from India
Sale price¥9,800
Rutilated Quartz (Rutile Quartz) 7.440ct Loose (Sun Rutilated Quartz)
Sale price¥25,800
Rutilated Quartz (Rutilated Quartz) 9.721ct Loose (Sun Rutilated Quartz)
Sale price¥29,800
Aquamarine in quartz 18.954ct rough stone
Sale price¥15,800
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.