Andesine Labradorite (commonly known as Rainbow Moonstone) 0.568ct loose
Sale price¥12,800
Pakistani Lazurite (Azurite) 4.1mm/0.318ct Loose Stone
Sale price¥59,800
Madagascar Green Sapphire 0.435ct Loose
Sale price¥13,800
Russian alexandrite 0.093ct loose
Sale price¥39,800
Sri Lankan Zircon 5.8mm/1.255ct Loose Stone
Sale price¥9,800
Mexican fire opal (faceted cut) 0.387ct loose stone
Sale price¥14,800
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
Mexican Fire Opal (Faceted Cut) 0.918ct Loose
Sale price¥12,800
Mexican Fire Opal (Faceted Cut) 0.525ct Loose
Sale price¥12,800
Synthetic black opal 2.996ct loose stone
Sale price¥29,800
Madagascar Blue Sapphire (Ice Blue) 0.584ct Loose
Sale price¥19,800
Sri Lankan Blue Sapphire 0.251ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.365ct Loose
Sale price¥15,800
[Takeshi Yamamoto] Brazilian Ametrine 24.465ct loose stone
Sale price¥98,000
White Topaz 2.563ct Loose (Needle-in Topaz)
Sale price¥5,980
Brazilian Alexandrite 0.091ct loose stone (princess cut)
Sale price¥22,800
Cambodian Blue Zircon 0.431ct Loose
Sale price¥7,980
Cambodian colorless zircon 0.707ct loose stone
Sale price¥8,800
Cambodian colorless zircon 0.749ct loose stone
Sale price¥8,800
Violet Sapphire 3.9mm/0.265ct Loose
Sale price¥8,800
Madagascar Violet Sapphire 4.0mm/0.300ct Loose
Sale price¥8,800
Tanzania Bicolor Zoisite 0.716ct Loose Stone
Sale price¥9,800
Purple Apatite 0.896ct Loose Stone with Certificate of Authenticity
Sale price¥11,000
Purple Apatite 1.549ct Loose Stone with Certificate
Sale price¥18,800
Purple Apatite 0.993ct Loose Stone with Certificate of Authenticity
Sale price¥9,800
Purple Apatite 0.769ct Loose Stone with Certificate of Authenticity
Sale price¥8,800
Tanzania Peristallite 5.4mm/0.397ct loose stone
Sale price¥7,980
Namibian Jeremejevite 0.069ct loose stone with certificate
Sale price¥19,800
Brazilian Alexandrite 0.056ct loose stone
Sale price¥22,800
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
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.718ct Loose Stone
Sale price¥18,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.735ct Loose Stone
Sale price¥15,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.751ct Loose Stone
Sale price¥15,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.704ct Loose Stone
Sale price¥15,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.656ct Loose Stone
Sale price¥15,800
[Cat cut (leopard print)] Amber 8.0mm/0.664ct loose stone
Sale price¥9,800
[Cat cut (cheetah pattern)] Amber 8.1mm/0.916ct loose stone
Sale price¥9,800
Brazilian Golden Beryl 7.3mm/1.391ct Loose Stone
Sale price¥8,800
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.