Brazilian Medusa Quartz (Paraiba Quartz) 5.809ct loose
Sale price¥8,800
Brazilian Medusa Quartz (Paraiba Quartz) 3.441ct loose
Sale price¥5,980
Brazilian Medusa Quartz (Paraiba Quartz) 2.757ct loose
Sale price¥5,980
Unheated silky pink sapphire from Vietnam 0.175ct loose
Sale price¥7,980
Diamond 0.051ct loose (trapeze cut, VS class equivalent)
Sale price¥9,800
Bicolor sapphire 0.231ct loose
Sale price¥6,980
Bicolor sapphire 0.207ct loose
Sale price¥6,980
Bicolor sapphire 0.190ct loose
Sale price¥6,980
Dendritic Agate 31.019ct Ruth Japanese/German
Sale price¥9,800
Australian boulder opal 1.730ct loose
Sale price¥9,800
Australian boulder opal 6.980ct loose
Sale price¥7,980
Sri Lankan Goethite Into Topaz 3.200ct loose
Sale price¥7,980
Brazilian Euclase 0.610ct loose
Sale price¥9,800
Myanmar purple spinel 0.750ct loose
Sale price¥8,800
Labradorite Moonstone 1.598ct Loose Stone Japanese-German
Sale price¥9,800
Brazilian Medusa Quartz (Paraiba Quartz) 3.919ct loose
Sale price¥8,800
Oregon Sunstone 1.157ct loose
Sale price¥9,800
Petalite 2.858ct loose
Sale price¥9,800
Diamond 0.052ct loose (trapeze cut, VS class equivalent)
Sale price¥8,800
Blue zircon 2.483ct loose
Sale price¥9,800
Cornell pin from Tanzania 0.523ct loose
Sale price¥9,800
Australian opal 0.286ct loose
Sale price¥6,980
Pink tourmaline 0.394ct loose
Sale price¥8,800
Blue zircon 0.397ct loose stone
Sale price¥7,980
Blue zircon 0.322ct loose stone
Sale price¥6,980
Pink sapphire 0.225ct loose
Sale price¥6,980
Tanzanite 0.449ct loose
Sale price¥6,980
Rhodolite garnet 0.990ct loose
Sale price¥5,980
Amazon green opal 1.120ct loose
Sale price¥5,980
Pink spinel 0.409ct loose
Sale price¥8,800
Australian boulder opal 2.470ct loose
Sale price¥8,800
Aventurine Aquamarine Cat's Eye 1.567ct Loose
Sale price¥5,980
Scapolite Cat's Eye 9.733ct Loose
Sale price¥8,800
Spinel 1.680ct loose
Sale price¥8,800
Pink tourmaline 0.516ct loose
Sale price¥6,980
Pink tourmaline 4.0mm/0.300ct loose stone
Sale price¥6,980
Green sapphire 0.518ct loose (teal green)
Sale price¥9,800
Myanmar trapichel ruby 0.160ct rough stone
Sale price¥5,980
Madeira Citrine 7mm/0.938ct loose
Sale price¥5,980
Mexican Fire Opal 4.2mm/0.182ct Loose
Sale price¥8,800
Blue tourmaline from Afghanistan 4.5mm/0.326ct loose
Sale price¥8,800
Felspar 2.993ct loose from Sri Lanka
Sale price¥8,800
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.