Russian oil-free emerald 0.570ct loose stone GIA
Sale price¥298,000
Malaya garnet 0.972ct loose
Sale price¥9,800
Myanmar Leuco Garnet 4.0mm/0.371ct Loose Stone
Sale price¥39,800
[12559903] 2.991ct Brazilian Imperial Topaz Loose Stone
Sale price¥158,000
Pigeon Blood Ruby 0.280ct Loose
Sale price¥49,800
Cornflower blue sapphire 0.490ct loose stone
Sale price¥98,000
Brazilian Pink Imperial Topaz 2.794ct Loose Japanese-German Edition
Sale price¥128,000
Color change Andesine 1.90ct loose
Sale price¥29,800
Russian demantoid garnet (horsetail recognized) 5.2mm/0.633ct loose
Sale price¥198,000
Brazilian Bicolor Imperial Topaz 0.981ct Loose Stone
Sale price¥79,800
Brazilian Morganite 1.266ct loose stone
Sale price¥29,800
0.266ct loose blue sapphire from Madagascar
Sale price¥8,800
Blue sapphire 0.295ct loose stone
Sale price¥7,980
Brazilian Dumortierite in Quartz 1.451ct Loose Stone
Sale price¥8,800
Illusion Tourmaline (Iridescent Tourmaline) 1.356ct Loose Stone
Sale price¥39,800
Star spinel 1.210ct loose
Sale price¥15,800
Pt950 Myanmar gray spinel (platinum spinel) 5.5mm/0.685ct black diamond ring
Sale price¥128,000
Brazilian Blue Topaz Cat's Eye 2.631ct Loose Stone
Sale price¥9,800
Brazilian Indicolite Tourmaline 4.0mm/0.240ct Loose Stone with Appraisal
Sale price¥29,800
[12560396] YAG (Yttrium Aluminum Garnet) 2.221ct Loose Stone
Sale price¥39,800
Russian demantoid garnet (horsetail recognized) 5.3mm/0.633ct loose
Sale price¥198,000
Spinel 0.545ct loose (rose cut)
Sale price¥6,980
Colombian Emerald 0.222ct Loose
Sale price¥59,800
Sillimanite from Sri Lanka 1.586ct loose stone
Sale price¥8,800
Paracytic peridot 0.536ct loose
Sale price¥188,000
Synthetic Alexandrite 5.7mm/0.827ct Loose Stone
Sale price¥19,800
German Hauyne 0.097ct Loose Stone
Sale price¥39,800
Zimbabwean sphene, 0.850ct loose gemstone
Sale price¥19,800
Zimbabwean Sphene 0.756ct Loose
Sale price¥18,800
Blue sapphire 0.291ct loose stone
Sale price¥18,800
Blue sapphire 4.1mm/0.332ct loose stone
Sale price¥25,800
Zimbabwean sphene, 0.665ct loose stone
Sale price¥12,800
Myanmar pink spinel 0.291ct loose stone
Sale price¥6,980
Brazilian alexandrite 0.060ct loose
Sale price¥14,800
Russian demantoid garnet (horsetail recognized) 0.291ct loose
Sale price¥49,800
[Posted 32501454] Pink Diamond 0.051ct Loose (FANCY LIGHT PINK, SI-2)
Sale price¥39,800
Myanmar Pink Spinel 0.650ct Loose
Sale price¥16,800
Brazilian Paraiba tourmaline 0.275ct loose (CuO:1.5%.MnO:2.3%)
Sale price¥398,000
Sphene from Madagascar 0.765ct loose
Sale price¥15,800
Malawi Bicolor Zircon 1.661ct Loose Stone
Sale price¥59,800
Celestite from Madagascar 7.080ct loose Japanese and German
Sale price¥98,000
Mali Garnet (Grossular/Andradite Garnet) 4.5mm/0.497ct Loose
Sale price¥8,800
[12552618] Unheated Brazilian Paraiba Tourmaline 0.063ct loose stone
Sale price¥49,800
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.