Cambodian blue zircon (Ratanakiri blue) 0.453ct loose
Sale price¥7,980
Purple spinel 0.465ct loose
Sale price¥5,980
Violet spinel 0.472ct loose
Sale price¥9,800
Pakistani Oil in Quartz 0.443ct Loose Stone
Sale price¥6,980
Brazilian Santa Maria Aquamarine 0.158ct loose
Sale price¥6,980
Andalusite 0.487ct loose
Sale price¥7,980
Yellow tourmaline 0.277ct loose
Sale price¥8,800
Pink tourmaline 0.341ct loose
Sale price¥8,800
Green tourmaline 0.388ct loose
Sale price¥8,800
Green tourmaline 0.389ct loose
Sale price¥9,800
Cornelpine from Tanzania 0.331ct loose
Sale price¥29,800
Cornell pin from Tanzania 3.5mm/0.173ct loose
Sale price¥14,800
Tanzanian Kornerupine 3.4mm/0.185ct Loose Stone
Sale price¥12,800
Bekily Blue Garnet from Madagascar (color change garnet) 0.151ct loose
Sale price¥14,800
Bekily Blue Garnet from Madagascar (color change garnet) 0.169ct loose
Sale price¥18,800
Madagascar Pezzottaite 3.7mm/0.184ct loose stone
Sale price¥6,980
Madagascar Pezzottaite 3.5mm/0.153ct loose stone
Sale price¥5,980
Madagascar Pezzottaite 4mm/0.242ct loose stone
Sale price¥8,800
Taaffeite 0.245ct loose Japanese and German
Sale price¥49,800
Mexican Opal 1.205ct Loose (Contrarus Opal, Faceted Cut)
Sale price¥29,800
Color change sapphire 0.453ct loose
Sale price¥5,980
Cornell pin from Tanzania 0.246ct loose
Sale price¥39,800
Tanzanian Kornerupine 0.264ct loose stone
Sale price¥29,800
Tanzanian Kornerupine 0.277ct loose stone
Sale price¥29,800
Tanzanian Kornerupine 0.272ct loose stone
Sale price¥22,800
Pezzotite from Madagascar 0.128ct loose
Sale price¥6,980
Pezzottite from Madagascar 0.142ct loose
Sale price¥9,800
Pezzottite from Madagascar 0.147ct loose
Sale price¥9,800
Pezzottite from Madagascar 0.115ct loose
Sale price¥5,980
Pezzotite from Madagascar 0.129ct loose
Sale price¥6,980
Brazilian dumortierite in quartz 0.496ct loose
Sale price¥6,580
Brazilian dumortierite in quartz 0.309ct loose
Sale price¥4,980
Afghanistan Hackmanite 0.111ct loose stone
Sale price¥6,980
Pezzotite cat's eye from Madagascar 0.310ct loose
Sale price¥24,800
Bicolor Euclase from Zimbabwe 0.197ct loose
Sale price¥88,800
Bicolor Euclase from Zimbabwe 0.211ct loose
Sale price¥98,000
Unheated silky pink sapphire from Vietnam 0.202ct loose
Sale price¥8,800
Bicolor Euclase from Zimbabwe 0.375ct Ruth Japanese-German Edition
Sale price¥128,000
Colombian oil-free emerald 0.220ct loose GIA
Sale price¥248,000
Paraiba tourmaline from Mozambique 0.240ct loose
Sale price¥35,800
Paraiba tourmaline from Mozambique 0.414ct loose
Sale price¥55,800
Paraiba tourmaline from Mozambique 0.130ct loose
Sale price¥22,800
Paraiba tourmaline from Mozambique 0.246ct loose
Sale price¥39,800
Blue tourmaline 0.369ct loose Japanese-German book
Sale price¥8,800
Lazurite in quartz 0.353ct loose
Sale price¥9,800
Brazilian imperial topaz 0.359ct loose
Sale price¥15,800
Australian black opal 0.310ct loose
Sale price¥8,800
Rhodochrosite 0.300ct loose from Detroit City
Sale price¥29,800
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.