Tanzanian Zoisite 4.9mm/0.472ct Loose
Sale price¥15,800
Jeremejevite from Namibia, 0.140ct Loose Stone, with Certificate
Sale price¥33,800
Tanzanian Ayana spinel (hot pink spinel) 3.0mm/0.107ct loose
Sale price¥18,800
0.229 ct Loose Red Spinel from Myanmar with Certificate
Sale price¥45,800
0.191ct Colombian emerald loose stone, Hōki-kyō
Sale price¥45,800
[Listing No. 12563397] Brazilian Alexandrite 0.217 ct Loose Stone
Sale price¥39,800
[Listed 12563403] Petzottaite from Madagascar 0.200ct Loose
Sale price¥29,800
[Listed as 12563264] Rough Russian Diamond (Sawable) 0.124ct
Sale price¥39,800
Sierra Leonean Rough Diamond (Sawable) 0.072 ct. [12563273 Listed]
Sale price¥22,800
[12563374 Posted] Bicolor Euclase from Zimbabwe, 0.055ct Loose Stone
Sale price¥14,800
[Posted on 12563395] Tanzanian Pink Spinel 0.148ct Loose Gemstone
Sale price¥22,800
[Item 12563407] Afghan Green Hauyne 0.075ct Loose Stone
Sale price¥29,800
[Published 12562264] Brazilian Lazulite 0.048ct Loose
Sale price¥36,800
Brazilian Paraiba Tourmaline 2.9mm/0.090ct Loose (CuO:1.7% MnO:1.4%)
Sale price¥69,800
Jeremejevite from Namibia 0.103ct Loose Stone with Certificate
Sale price¥25,800
0.416ct Loose Mozambique Ruby with Gemstone Identification Report
Sale price¥29,800
Synthetic Rutile 4.3mm/0.447ct Loose
Sale price¥12,800
0.333ct Loose Mahenge (Pink) Spinel from Tanzania with Certificate
Sale price¥29,800
0.147ct Loose Colombian Emerald with Gemological Report
Sale price¥12,800
Colombian Emerald 3.3mm/0.167ct Loose Stone with Appraisal
Sale price¥24,800
Columbia Emerald 3.3mm/0.158ct Loose Gemstone with Certificate
Sale price¥18,800
Brazilian Euclase 0.289ct loose stone
Sale price¥12,800
Brazilian Euclase 0.263ct Loose Stone (Colorless Euclase)
Sale price¥9,800
Synthetic Alexandrite 0.287ct loose stone
Sale price¥8,800
Russian rough diamond (sawable) 0.088ct loose
Sale price¥19,800
Brazilian Paraiba Tourmaline 0.360ct Loose GIA
Sale price¥298,000
Sri Lankan Yellow Sapphire 0.349ct Loose
Sale price¥12,800
Brazilian Green Tourmaline 0.376ct Loose Stone
Sale price¥7,980
Brazilian Green Tourmaline 0.332ct Loose Stone
Sale price¥7,980
Tanzania Bicolor Zoisite 4.6mm/0.489ct 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
Tanzanite from Tanzania 0.385ct loose stone
Sale price¥8,800
Tanzania Bicolor Zoisite 0.286ct Loose Stone
Sale price¥7,980
Blue sapphire 0.287ct loose
Sale price¥12,800
Brazilian Paraiba Tourmaline 0.060ct Loose (CuO:1.6%, MnO:2.3%)
Sale price¥42,800
Russian Diamond Rough (Sawable) 0.103ct Loose (Trigon)
Sale price¥25,800
Tanzanian Rhodolite Garnet 0.448ct Loose Stone
Sale price¥6,980
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.