![[On Sale at 10 PM on October 12th] [Limited to 7 stones] One loose, oil-free emerald from Russia (1.5-1.6mm, step cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010795_07720c8f-f8df-4c94-9f93-deb3d7382fb6.jpg?v=1760090374&width=4000)
Russian oil-free emerald 0.570ct loose stone GIA
Sale price¥298,000
![[On Sale at 10 PM on August 11th] Afghanistan Oil-Free Emerald 0.100ct Loose GIA](http://store.karatz.jp/cdn/shop/files/P7111592_98142a6f-80c3-4a13-a3fb-bec4bd6d515a.jpg?v=1754698988&width=2102)
![[On Sale at 10 PM on August 11th] 0.060ct Loose GIA Emerald from Madagascar, No Oil](http://store.karatz.jp/cdn/shop/files/P7111504_2a68ed93-d0a2-40e9-bf36-967ced39df1c.jpg?v=1754697292&width=2156)
Colombian oil-free emerald 0.535ct loose Japanese-German edition
Sale price¥248,000
Non-Oil Emerald 1.070ct Loose Gübelin Certificate
Sale price¥698,000
Russian oil-free emerald 0.640ct loose GIA
Sale price¥198,000
Non-Oil Emerald 1.030ct Loose Gübelin Gübelin Certificate
Sale price¥698,000
Colombian oil-free emerald 0.290ct loose stone GIA
Sale price¥198,000
Non-Oil Emerald 1.370ct Loose GIA
Sale price¥1,580,000
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
Colombian oil-free emerald 0.220ct loose GIA
Sale price¥248,000
![[Sold at 10 PM on September 5th] Single loose Russian oil-free emerald (2.2mm, round cut) {Multiple purchase discounts available}](http://store.karatz.jp/cdn/shop/files/P1010193_26cac3bd-d26d-4305-ac20-a42e0412ab6d.jpg?v=1756963298&width=4000)
![[On Sale 10/13 at 10 PM] [Limited to 6 stones] One loose, oil-free emerald from Russia (3.2mm, round cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010821_c88ac283-022d-4a22-ac64-b6108721720c.jpg?v=1760316089&width=3553)
![[Lottery Sale: Friday, October 31st, 10:00 AM] 0.290ct Colombian Oil-Free Emerald Loose GIA](http://store.karatz.jp/cdn/shop/files/PA211226.jpg?v=1761368587&width=4000)
[Posted 12548173] Colombian oil-free emerald 0.060ct loose
Sale price¥89,800
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.