Synthetic Rutile 4.3mm/0.447ct Loose
Sale price¥12,800
Brazilian Euclase 0.289ct loose stone
Sale price¥12,800
Synthetic Alexandrite 0.287ct loose stone
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.349ct Loose
Sale price¥12,800
Tanzania Bicolor Zoisite 4.6mm/0.489ct Loose Stone
Sale price¥9,800
Tanzania Bicolor Zoisite 4.8mm/0.540ct Loose Stone
Sale price¥9,800
Tanzanite from Tanzania 0.497ct loose stone
Sale price¥9,800
Tanzania Bicolor Zoisite 4.7mm/0.486ct Loose Stone
Sale price¥9,800
Tanzanite from Tanzania 0.245ct loose stone
Sale price¥8,800
Tanzania Bicolor Zoisite 0.295ct Loose Stone
Sale price¥7,980
Blue sapphire 0.287ct loose
Sale price¥12,800
Tanzanian Kornerupine 0.212ct loose stone
Sale price¥19,800
0.323ct loose pezzottaite from Madagascar
Sale price¥49,800
Brazilian Silky Alexandrite 0.265ct Loose Stone with Certification
Sale price¥45,800
Unheated Ruby, 0.207 ct, Loose Stone, Hōki Kyō
Sale price¥69,800
YAG (Yttrium Aluminum Garnet) 4.9mm/0.574ct loose stone
Sale price¥8,800
Tanzanian green sapphire 0.303ct loose stone
Sale price¥8,800
Sri Lankan cobalt spinel 0.281ct loose stone
Sale price¥55,800
Colombian mint color emerald 0.297ct loose stone
Sale price¥8,800
Pakistani Oil in Quartz 0.438ct Loose Stone
Sale price¥6,980
Jeremejevite from Namibia 0.095ct Loose Stone with Certification
Sale price¥24,800
Brazilian Blue Tourmaline 0.196ct Loose
Sale price¥6,980
0.183ct Trapiche Emerald Loose Stone from Colombia
Sale price¥39,800
Loose 0.234ct Burmese Red Spinel
Sale price¥12,800
0.249ct Myanmar Red Spinel Loose Stone
Sale price¥12,800
Afghan Hauyne 0.098ct Loose Stone with Certification
Sale price¥25,800
0.210 ct Colombian Trapiche Emerald Loose Stone
Sale price¥39,800
Blue Sapphire 0.369ct Loose Gemstone with Japan-Germany Appraisal
Sale price¥22,800
0.215ct Santa Maria Aquamarine from Brazil, Loose Stone with Certificate
Sale price¥15,800
Brazilian Santa Maria Aquamarine 0.183ct Loose Stone with Certification
Sale price¥12,800
0.210ct Colombian Non-Oil Emerald Loose Stone GIA
Sale price¥228,000
0.715ct Loose Alexandrite from Orissa, India with Gemstone Report
Sale price¥18,800
Internally Flawless Diamond 4.4mm/0.320ct Loose (G, IF, 3Excellent) GIA
Sale price¥89,800
Ruby 0.820ct Loose Gem (Hohki-kyo)
Sale price¥39,800
Color change sapphire 0.473ct loose stone (purple sapphire)
Sale price¥25,800
Madagascar Yellow Sapphire 4.4mm/0.417ct Loose
Sale price¥14,800
0.093ct Hackmanite from Afghanistan
Sale price¥16,800
Brazilian Seafoam Tourmaline, 4.1mm/0.303ct loose stone
Sale price¥16,800
Brazilian Seafoam Tourmaline, 4.1mm/0.280ct Loose
Sale price¥15,800
0.334 ct Brazilian Seafoam Tourmaline Loose Stone
Sale price¥16,800
American red beryl 0.160ct loose
Sale price¥89,800
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.