Royal blue sapphire 1.44ct loose GIA
Sale price¥188,000
Brazilian particolor Paraiba tourmaline 0.26ct loose GIA
Sale price¥598,000
Unheated sapphire 2.430ct loose GIA
Sale price¥298,000
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)
Brazilian Unheated Bicolor Paraiba Tourmaline 0.105ct Loose GIA
Sale price¥198,000
Vietnam Pink Sapphire 1.690ct Loose GIA
Sale price¥98,000
Burmese Ruby 3.725ct Loose GIA & Chuho
Sale price¥198,000
Pt900 Kashmir unheated sapphire 1.14ct / diamond 0.70ct ring GIA
Sale price¥1,580,000
Russian oil-free emerald 0.640ct loose GIA
Sale price¥198,000
Madagascar emerald 0.816ct loose stone
Sale price¥98,000
K18YG Brazilian Paraiba Tourmaline 0.30ct Diamond Ring GIA
Sale price¥198,000
Brazilian Paraiba Tourmaline 0.230ct Loose GIA (CuO: 0.9%, MnO: 1.1%)
Sale price¥158,000
K18PG Brazilian Paraiba Tourmaline 0.286ct Grandidierite Ring GIA
Sale price¥198,000
Colombian oil-free emerald 0.290ct loose stone GIA
Sale price¥198,000
Brazilian Paraiba Tourmaline 0.360ct Loose GIA
Sale price¥298,000
Non-Oil Emerald 1.370ct Loose GIA
Sale price¥1,580,000
Brazilian Paraiba Tourmaline 0.405ct loose stone (CuO2.7% CuO2.2%) GIA
Sale price¥198,000
Unheated Bicolor Paraiba Tourmaline 0.092ct Loose GIA
Sale price¥188,000
Colombian oil-free emerald 0.220ct loose GIA
Sale price¥248,000
Brazilian unheated particolor Paraiba tourmaline 0.84ct loose GIA
Sale price¥2,580,000
Paraiba tourmaline from Brazil 0.34ct loose GIA
Sale price¥59,800
[Option] GIA certificate issuance fee
Sale price¥15,000
![[Lottery Sale: Friday, October 31st, 10:00 AM] Internally Flawless Diamond (H&C) 3.8mm/0.210ct Loose (F, IF, 3 Excellent H&C) GIA & Chuho](http://store.karatz.jp/cdn/shop/files/S__223027203.jpg?v=1761697297&width=1477)
![[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)
[12548177 published] Non-oil red beryl 0.060ct loose
Sale price¥128,000
[Posted 12548173] Colombian oil-free emerald 0.060ct loose
Sale price¥89,800
Unheated Brazilian Color Change Paraiba Tourmaline 0.30ct Loose GIA
Sale price¥1,280,000
![[Lottery sale: Friday, October 31st, 10:00 AM] 102504_Oil-free red beryl 2.5mm/0.050ct loose GIA](http://store.karatz.jp/cdn/shop/files/P9128509_2554e39d-18e2-4579-b5f9-56bf08927de5.jpg?v=1761264759&width=2688)
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.