South African Diamond Rough (Sawable) 0.107ct Rough Trigon
Sale price¥42,800
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
Brazilian Paraiba tourmaline 0.184ct raw stone (CuO:1.5%, MnO:0.6%)
Sale price¥12,800
Brazilian Paraiba tourmaline 0.180ct raw stone (CuO:1.8%, MnO:0.1%)
Sale price¥12,800
Colombian Trapiche Emerald 2.730ct Loose
Sale price¥98,000
Brazilian Dumortierite in Quartz 55.207ct Rough Stone
Sale price¥8,800
Brazilian Paraiba tourmaline in quartz 3.678ct loose
Sale price¥9,800
Brazilian bicolor tourmaline 12.842ct loose
Sale price¥298,000
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 Pink Imperial Topaz 1.511ct Loose Japanese-German Edition
Sale price¥69,800
Brazilian Pink Imperial Topaz 0.909ct Loose Japanese-German Edition
Sale price¥39,800
Nigerian pink tourmaline 1.527ct loose stone
Sale price¥18,800
Brazilian Dumortierite in Quartz 2.484ct loose stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.368ct loose stone
Sale price¥12,800
Turkish pink diaspore 0.194ct loose stone
Sale price¥9,800
Turkish pink diaspore 0.171ct loose stone
Sale price¥8,800
Turkish pink diaspore 0.151ct loose stone
Sale price¥8,800
Tanzanian mint diopside 0.229ct loose stone
Sale price¥12,800
Brazilian Pink Tourmaline 0.361ct Loose Stone
Sale price¥9,800
Zambian Canary Yellow Tourmaline 0.25ct Loose Stone
Sale price¥9,800
Pt950 Tanzanian Tanzanite 1.357ct Blue Zircon Pink Sapphire Ring
Sale price¥128,000
Diamond 0.169ct loose (F, VS2)
Sale price¥18,800
[Sakura Shape] Brazilian Green Tourmaline 6.7mm/1.057ct Loose Patch
Sale price¥39,800
Paraiba tourmaline from Brazil 3.1mm/0.151ct loose (CuO:1.1%, MnO:3.8%)
Sale price¥29,800
Brazilian Paraiba tourmaline in quartz 2.864ct loose
Sale price¥9,800
Russian Demantoid Garnet (Horsetail certified) 2.6mm/0.091ct loose stone
Sale price¥15,800
Russian demantoid garnet (horsetail recognized) 0.105ct loose
Sale price¥14,800
Brazilian unheated pink imperial topaz (sherry pink) 0.476ct loose stone
Sale price¥39,800
White Topaz 2.563ct Loose (Needle-in Topaz)
Sale price¥5,980
Pt950 Colombian Euclase 0.07ct Diamond Ring
Sale price¥89,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.783ct Loose Stone
Sale price¥15,800
Brazilian Paraiba Tourmaline in Quartz 0.712ct Loose Stone
Sale price¥15,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.676ct Loose Stone
Sale price¥15,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.728ct Loose Stone
Sale price¥12,800
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.