Brazilian Paraiba Tourmaline 0.360ct Loose GIA
Sale price¥298,000
[12552306] Iolite 14.158ct loose stone
Sale price¥258,000
Brazilian Indigolite Tourmaline 7.002ct Loose Stone, Japan-Germany Exchange
Sale price¥198,000
Benitoite 0.338ct loose stone
Sale price¥258,000
Unheated Brazilian Paraiba Tourmaline 0.110ct Loose Stone AIGS
Sale price¥258,000
Ukrainian bicolor topaz 5.622ct loose stone
Sale price¥198,000
Benitoite 0.231ct loose
Sale price¥220,000
Benitoite 0.286ct loose
Sale price¥258,000
Benitoite 0.272ct loose stone (emerald cut)
Sale price¥248,000
K18/Pt950 Afghanistan Green Apatite 0.162ct Ring
Sale price¥198,000
Benitoite 0.352ct loose
Sale price¥298,000
Non-Oil Emerald 1.370ct Loose GIA
Sale price¥1,580,000
Brazilian Paraiba Tourmaline 0.405ct loose stone (CuO2.7% CuO2.2%) GIA
Sale price¥198,000
Non-Oil Emerald 0.555ct Loose Stone by Nikkei
Sale price¥288,000
Colombian oil-free emerald 0.310ct loose stone
Sale price¥298,000
[Dandelion Cut] K18PG Yellow Sapphire 1.927 Ring Japanese-German Edition
Sale price¥298,000
Colombian Euclase 24.491ct Ruth Medium Treasure Guide
Sale price¥498,000
Unheated Bicolor Paraiba Tourmaline 0.092ct Loose GIA
Sale price¥188,000
South African rhodochrosite 2.477ct loose Japanese-German edition
Sale price¥398,000
Bicolor Paraiba tourmaline 2.477ct loose DGL version
Sale price¥228,000
Gray diamond 1.247ct loose
Sale price¥228,000
Pt900 benitoite 0.152ct/diamond 0.58ct ring
Sale price¥188,000
Colombian trapiche emerald 13.466ct loose
Sale price¥398,000
Phosphophyllite from Bolivia 2.589ct loose Japanese-German edition
Sale price¥1,280,000
Bulgarian green sphalerite 9.2mm/3.608ct loose Japanese-German edition
Sale price¥398,000
Colombian oil-free emerald 0.220ct loose GIA
Sale price¥248,000
Rubellite 7.068ct loose Japanese-German book
Sale price¥498,000
Brazilian unheated particolor Paraiba tourmaline 0.84ct loose GIA
Sale price¥2,580,000
Paraiba tourmaline from Brazil 0.132ct loose (CuO:2.1%.MnO:2.2%)
Sale price¥188,000
Rhodochrosite 4.000ct loose from Detroit City
Sale price¥498,000
Russian demantoid garnet (horsetail recognized) 6.3mm/1.058ct loose
Sale price¥398,000
Purple Diamond 0.070ct Loose (FANCY VIVID PINK PURPLE, I-1)
Sale price¥188,000
Color change sphene from Pakistan 7.137ct loose
Sale price¥198,000
Paraiba Tourmaline from Mozambique 2.037ct loose stone with gem analysis
Sale price¥598,000
Unheated Burmese pink spinel 1.430ct loose AIGS
Sale price¥188,000
Russian demantoid garnet (horsetail recognized) 5.2mm/0.702ct loose
Sale price¥228,000
Chrysoberyl cat's eye from Sri Lanka 5.176ct loose
Sale price¥198,000
Bicolor tourmaline 22.088ct loose
Sale price¥288,000
Bicolor Benitoite 0.282ct loose
Sale price¥220,000
Musgravite/Taaffeite 15.472ct Ruth Japanese and German
Sale price¥198,000
Cambodian Blue Zircon (Ratanakiri Blue) 23.12ct Loose
Sale price¥498,000
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.