Purple spinel 4.5mm/0.365ct loose
Sale price¥4,980
Ethiopian Opal 5.2mm/0.688ct Loose (Sphere)
Sale price¥6,980
Silky Sapphire from Sri Lanka 1.716ct loose stone
Sale price¥14,800
Sri Lankan Silky Sapphire 6.4mm/1.036ct Loose Stone
Sale price¥12,800
Brazilian bicolor tourmaline 0.326ct loose stone
Sale price¥8,800
Myanmar spinel 0.402ct loose stone
Sale price¥12,800
Brazilian bicolor tourmaline 1.953ct loose stone
Sale price¥18,800
Brazilian Quartz (Striped Quartz) 15.019ct Loose Patch
Sale price¥8,800
Silky sapphire from Sri Lanka 0.975ct loose
Sale price¥8,800
Brazilian Pink Tourmaline 0.331ct Loose Stone
Sale price¥8,800
Sri Lankan Blue Sapphire 0.344ct Loose
Sale price¥12,800
Brazilian Mica in Quartz (Mica in Quartz) 1.009ct Loose Stone
Sale price¥9,800
Brazilian Mica in Quartz (Mica in Quartz) 0.701ct Loose Stone
Sale price¥6,980
Brazilian Mica in Quartz (Mica in Quartz) 0.990ct Loose
Sale price¥6,980
Oregon Sunstone from the United States 1.198ct loose stone
Sale price¥8,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.272ct Loose Stone
Sale price¥19,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.192ct Loose Stone
Sale price¥13,800
2.801ct loose stone of Rogerian fluorite from the UK
Sale price¥8,800
Oregon Sunstone from the United States 8.0mm/1.835ct loose stone
Sale price¥22,800
Diamond (cabochon cut) 0.196ct loose
Sale price¥29,800
Salt and Pepper Diamond 5.2mm/0.863ct Loose (Cabochon Cut)
Sale price¥98,000
Colombian emerald rough stone 7.924ct
Sale price¥9,800
0.076ct Loose Madagascar Bekily Blue Garnet (Color Change Garnet)
Sale price¥9,800
Synthetic rutile 2.462ct loose stone
Sale price¥25,800
British Rogerley Fluorite 3.750 ct loose stone
Sale price¥8,800
Mexican bicolor Danburite 1.932ct loose stone by Nikkei
Sale price¥29,800
Green tourmaline 0.090ct loose stone
Sale price¥5,980
Tanzanian Zoisite 1.290ct Loose Stone with Appraisal
Sale price¥19,800
Gray Diamond 2.8mm/0.089ct Loose (LIGHT GRAY, SI-2)
Sale price¥16,800
Gray Diamond, 2.9mm/0.096ct Loose (VERY LIGHT GRAY, SI-1)
Sale price¥15,800
Sapphire 0.461ct loose stone
Sale price¥12,800
[On sale 5/22 at 10 PM] Australian Black Opal 0.325ct Loose Stone
Sale price¥9,800
[Sale on May 24th at 10 PM JST] Australian Black Opal 0.216ct Loose
Sale price¥11,000
[Cat cut] Brazilian dendritic agate 0.774ct loose stone
Sale price¥6,980
Myanmar Violet Spinel 0.426ct Loose
Sale price¥8,800
Australian black opal 3.242ct loose stone
Sale price¥59,800
Brazilian Green Tourmaline 0.825ct Loose Stone
Sale price¥9,800
Synthetic Moissanite 5.8mm/0.678ct Loose Stone
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.