Cassiterite 4.2mm/0.676ct Loose Stone with Certificate of Authenticity
Sale price¥16,800
Australian White Opal, 6.0mm/0.697ct loose stone (rose cut)
Sale price¥8,800
Sri Lankan Peristerite 0.272ct Loose Stone
Sale price¥11,000
[12549595 published] Goshenite 1.080ct loose
Sale price¥8,800
Cambodian colorless zircon 0.630ct loose stone
Sale price¥8,800
Brazilian Petalite 1.197ct Loose Stone
Sale price¥7,980
Australian Opal 0.374ct Loose
Sale price¥6,980
Tanzanian Sunstone (Illusion Sunstone) 0.627ct Loose Stone
Sale price¥9,800
South African rough diamond (sawable) 0.105ct rough (with trigon)
Sale price¥39,800
[12560396] YAG (Yttrium Aluminum Garnet) 2.221ct Loose Stone
Sale price¥39,800
Tanzanian Sunstone 1.599ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 1.911ct Loose Stone
Sale price¥8,800
Brazilian Dumortierite in Quartz 1.451ct Loose Stone
Sale price¥8,800
Brazilian Dumortierite in Quartz 0.978ct Loose Stone
Sale price¥12,800
Myanmar Leuco Garnet 4.0mm/0.371ct Loose Stone
Sale price¥39,800
[On sale at 10pm on August 19th] Sliced Trapiche Diamond 0.228ct Loose
Sale price¥18,800
Indian Moonstone 6.2mm/0.810ct Loose
Sale price¥8,800
Indian Moonstone 6.2mm/0.775ct Loose Stone
Sale price¥7,980
Mexican Hyalite Opal 1.587ct Loose
Sale price¥9,800
Sri Lankan star sapphire 2.062ct loose
Sale price¥12,800
Diamond (cabochon cut) 0.196ct loose
Sale price¥29,800
Mexican Hyalite Opal 0.942ct Loose
Sale price¥9,800
Mexican Hyalite Opal 6.0mm/0.708ct Loose
Sale price¥25,800
[Takeshi Yamamoto] Brazilian Rock Crystal 12.725ct Loose
Sale price¥39,800
Brazilian chlorite in quartz 27.725ct loose stone
Sale price¥19,800
Diamond 0.245ct loose stone (E, VS-1, octagon brilliant cut)
Sale price¥39,800
Oligoclase Sunstone 15mm/10.593ct Loose
Sale price¥15,800
Oregon Sunstone from the United States 0.605ct loose stone
Sale price¥8,800
Mexican Hyalite Opal 0.664ct Loose
Sale price¥6,980
Mexican Hyalite Opal 3.917ct Loose
Sale price¥15,800
Mexican Hyalite Opal 1.554ct Loose
Sale price¥7,980
Mexican Hyalite Opal 1.687ct Loose
Sale price¥9,800
Brazilian Dumortierite in Quartz 3.188ct loose stone (faceted cut)
Sale price¥12,800
Brazilian Dumortierite in Quartz 1.284ct loose stone (faceted cut)
Sale price¥9,800
Brazilian rutilated quartz (rutilated quartz) 7.741ct loose stone
Sale price¥15,800
Brazilian Rutile Cat's Eye 3.306ct Loose Stone (Red Rutile Quartz)
Sale price¥16,800
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
Cambodian colorless zircon 1.407ct 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.