Colombian emerald rough stone 37.764ct (Gachala mine)
Sale price¥598,000
Zimbabwe Bicolor Euclase 0.405ct Loose Stone by Nikkei
Sale price¥298,000
Myanmar Podretteite 0.407ct loose stone [Gemstone Encyclopedia]
Sale price¥128,000
Brazilian bicolor tourmaline 0.502ct loose stone
Sale price¥9,800
Brazilian Limonite in Topaz 20.777ct loose stone
Sale price¥39,800
Synthetic Moissanite 10mm/4.342ct Loose Stone
Sale price¥18,800
Afghanistan Awinite 0.103ct loose stone JTL catalog
Sale price¥49,800
Afghanistan Awinite 0.075ct loose stone JTL catalog
Sale price¥35,800
Afghanistan Awinite 0.069ct loose stone JTL catalog
Sale price¥29,800
Myanmar spinel and Tanzanite 7 stone set ring (Alterno setting)
Sale price¥79,800
Myanmar spinel and Brazilian amethyst 7 stone set ring (Alterno setting)
Sale price¥79,800
![[On sale from 10pm on 12/29] Sri Lankan blue sapphire and 10 Vietnamese silky pink sapphires in a half eternity ring set (approx. 2.6mm)](http://store.karatz.jp/cdn/shop/files/P1010116_672b9da8-e8b2-4ece-bf77-5820dff2b5f9.jpg?v=1735111884&width=4000)
13-stone diamond half eternity ring set (VS class, D-G color, H&C, 2.0mm)
Sale price¥158,000
Russian Demantoid Garnet (Horsetail) 3.5mm/0.187ct Loose Stone
Sale price¥45,800
Russian Demantoid Garnet (Horsetail certified) 2.4mm/0.066ct loose stone
Sale price¥12,800
Brazilian Dumortierite in Quartz 1.320ct Loose Stone
Sale price¥14,800
Brazilian Pink Tourmaline 0.331ct Loose Stone
Sale price¥8,800
Colombian Trapiche Emerald 0.923ct Rough Stone
Sale price¥45,800
Tanzanian bicolor tanzanite 4.804ct rough stone
Sale price¥18,800
Diamond 4.1mm/0.263 Loose (I, VVS2, 3Excellent H&C)
Sale price¥55,800
Diamond 3.8mm/0.200 loose (E, VVS1, VeryGood)
Sale price¥39,800
Diamond 3.8mm/0.220 Loose (H, VS1, 3Excellent H&C)
Sale price¥45,800
Diamond 3.8mm/0.209 Loose (G, VVS1, 3Excellent H&C)
Sale price¥59,800
Fancy Yellow Diamond 0.227 Loose (FANCY YELLOW, I-2)
Sale price¥59,800
Brazilian Limonite in Topaz 8.994ct loose stone
Sale price¥19,800
Brazilian Limonite in Topaz 6.856ct loose stone
Sale price¥29,800
Brazilian Limonite in Topaz 3.986ct loose stone
Sale price¥9,800
Brazilian Alexandrite 0.073ct loose stone (princess cut)
Sale price¥16,800
Brazilian Alexandrite 0.089ct loose stone (princess cut)
Sale price¥19,800
Ethiopian Opal 41.967ct Rough Stone
Sale price¥33,800
Ethiopian Opal 15.845ct Rough Stone
Sale price¥15,800
Ethiopian Opal 14.344ct Rough Stone
Sale price¥14,800
Brazilian Paraiba Tourmaline in Quartz 8.0mm/1.199ct Loose Stone
Sale price¥25,800
Brazilian Paraiba Tourmaline in Quartz 0.946ct Loose Stone
Sale price¥15,800
Brazilian Paraiba Tourmaline in Quartz 0.620ct Loose Stone
Sale price¥25,800
Brazilian Paraiba Tourmaline in Quartz 0.866ct Loose Stone
Sale price¥17,800
Brazilian Paraiba Tourmaline in Quartz 0.812ct Loose 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.