Oval Cut
Brazilian parti-color tourmaline 2.702ct loose stone
Sale price¥69,800
Brazilian rhodonite 3.224ct loose stone
Sale price¥98,000
Australian black opal 9.709ct loose stone
Sale price¥158,000
Brazilian Paraiba Tourmaline 0.211ct loose stone
Sale price¥49,800
Colombian pyrite-mica emerald 0.901ct loose stone
Sale price¥45,800
Brazilian Rubellite 1.027ct Loose Stone
Sale price¥69,800
Mozambique rubellite 2.752ct loose stone
Sale price¥69,800
Mozambique Rubellite 2.141ct Loose Stone
Sale price¥69,800
Grandidierite from Madagascar 0.264ct loose stone
Sale price¥88,800
Spanish Sphalerite 2.726ct loose stone
Sale price¥39,800
Tanzania Color Change Garnet 0.789ct Loose Stone
Sale price¥9,800
Silky Sapphire from Sri Lanka 1.716ct loose stone
Sale price¥14,800
Tanzanian Kornerupine 0.453ct loose stone
Sale price¥24,800
American Red Beryl 0.106ct Loose
Sale price¥24,800
Brazilian pink tourmaline 1.458ct loose stone
Sale price¥39,800
Brazilian Flower Rutile in Quartz 3.066ct Loose Stone
Sale price¥18,800
Brazilian Flower Rutile in Quartz 3.312ct Loose Stone
Sale price¥15,800
Brazilian Tourmaline (untreated) 5.120ct loose stone
Sale price¥39,800
Brazilian Yellow Beryl 11.411ct Loose Stone, Japan-Germany Exchange
Sale price¥25,800
Zimbabwe Bicolor Euclase 0.152ct Loose Stone by Nikkei
Sale price¥158,000
Italian Leucite 0.374ct loose stone (play of color)
Sale price¥14,800
Pakistani Clinohumite 1.440ct Loose Stone, Japan-Germany Exchange
Sale price¥29,800
Italian Leucite 0.346ct loose stone (play of color)
Sale price¥12,800
Purple spinel 0.955ct loose stone
Sale price¥19,800
Paraiba tourmaline from Brazil 0.154ct loose
Sale price¥29,800
Synthetic Alexandrite 0.287ct loose stone
Sale price¥8,800
Montana Agate 9.528ct Loose
Sale price¥9,800
Brazilian copper rutilated quartz 1.937ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 1.991ct loose stone
Sale price¥6,980
Brazilian copper rutilated quartz 2.101ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 1.889ct loose stone
Sale price¥8,800
Mexican Cantera Opal 7.720ct Loose
Sale price¥22,800
Mexican Cantera Opal 4.158ct Loose
Sale price¥15,800
Brazilian Paraiba Tourmaline 0.360ct Loose GIA
Sale price¥298,000
Tanzanian Kornerupine Cat's Eye 1.608ct Loose Stone
Sale price¥6,980
Zimbabwean Blue Apatite (UV Type) 0.650ct Loose
Sale price¥9,800
[12551312] Zimbabwean Blue Apatite (UV Type) 1.312ct Loose Stone
Sale price¥9,800
[12551148] Australian black opal 3.890ct loose stone
Sale price¥69,800
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.