Diamond 0.052ct loose (trapeze cut, VS class equivalent)
Sale price¥6,980
Loose Tourmaline from Brazil, 0.270 ct
Sale price¥5,980
Brazilian Amethyst 0.256ct Loose Stone
Sale price¥8,800
Brazilian rose quartz 1.848ct loose stone
Sale price¥9,800
Sri Lankan Yellow Sapphire 0.182ct Loose
Sale price¥9,800
Brazilian Rose Quartz 1.793ct Loose Stone
Sale price¥9,800
Brazilian rose quartz 2.167ct loose stone
Sale price¥9,800
Colombian emerald rough stone 7.924ct
Sale price¥9,800
[Option] Milling
Sale price¥6,600
Cornell pin from Tanzania 0.523ct loose
Sale price¥7,980
[Rouge cut] Almandine garnet 2.090ct loose
Sale price¥8,800
Blue zircon 0.397ct loose stone
Sale price¥6,980
Pink sapphire 0.225ct loose
Sale price¥6,980
YAG (Yttrium Aluminum Garnet) 7mm/1.775ct Loose Stone
Sale price¥9,800
Australian boulder opal 2.470ct loose
Sale price¥7,980
Pink tourmaline 0.516ct loose
Sale price¥5,980
Sri Lankan star sapphire 1.487ct loose
Sale price¥8,800
Unheated silky pink sapphire from Vietnam 0.426ct loose
Sale price¥9,800
Felspar 2.993ct loose from Sri Lanka
Sale price¥6,980
Tanzanian Almandine Garnet 0.885ct Loose Stone
Sale price¥8,800
1.705ct Australian Prehnite Loose Stone
Sale price¥9,800
Australian Prehnite 1.691ct loose stone
Sale price¥9,800
Brazilian Green Tourmaline 5.0mm/0.401ct Loose Stone (Rose Cut)
Sale price¥9,800
Felspar 1.939ct loose from Sri Lanka
Sale price¥5,980
Hot Pink Spinel 0.203ct Loose (Mahenge Spinel)
Sale price¥8,800
Synthetic rutile 5.1mm/0.893ct loose stone
Sale price¥9,800
Colombian trapiche emerald (reverse trapiche) 0.093ct loose
Sale price¥7,980
Diamond 0.061ct loose (trapeze cut, VS class equivalent)
Sale price¥7,980
Diamond 0.042ct loose (trapeze cut, VS class equivalent)
Sale price¥6,980
Diamond 0.039ct loose (trapeze cut, equivalent to VS class)
Sale price¥5,980
Blue tourmaline from Afghanistan 4.5mm/0.326ct loose
Sale price¥7,980
Felspar 3.330ct loose from Sri Lanka
Sale price¥8,800
Tibetan Andesine 2.769ct Loose Stone (Pixel Cut)
Sale price¥9,800
Tanzanian Rhodolite Garnet 5.3mm/0.903ct Loose Stone
Sale price¥9,800
Dendritic quartz 7.997ct loose
Sale price¥6,980
Tanzanian Sunstone 0.980ct Loose Stone
Sale price¥9,800
Moldavite from the former Czechoslovakia, 0.097ct loose stone
Sale price¥8,800
Moldavite from the former Czechoslovakia, 0.095ct loose stone
Sale price¥8,800
Madagascar Apatite 6.0mm/0.901ct Loose Stone
Sale price¥9,800
Australian Prehnite 3.751ct loose stone
Sale price¥9,800
Brazilian citrine 5.4mm/0.769ct loose stone
Sale price¥6,980
Brazilian citrine 1.962ct loose stone
Sale price¥9,800
Brazilian citrine 1.659ct loose stone
Sale price¥9,800
Brazilian citrine 1.644ct loose stone
Sale price¥9,800
Vietnamese aquamarine 0.729ct loose stone
Sale price¥8,800
Vietnamese aquamarine 0.574ct loose stone
Sale price¥8,800
Tibetan Andesine 0.361ct Loose Stone
Sale price¥8,800
Brazilian Medusa Quartz (Paraiba Quartz) 0.614ct Loose Stone
Sale price¥9,800
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.