![[12/12 22:00 Sale] Synthetic Opal 0.856ct Loose (Synthetic Water Opal)](http://store.karatz.jp/cdn/shop/files/PC032188.jpg?v=1765630279&width=4000)
![[12/13 22:00 Sale] Brazilian Green Tourmaline 0.821ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC042796.jpg?v=1764990794&width=4000)
[12/13 22:00 Sale] Brazilian Green Tourmaline 0.821ct Loose Stone
Sale price¥12,800
Bicolor Zoisite 0.581ct loose
Sale price¥12,800
Chrome tourmaline 0.300ct loose stone
Sale price¥2,980
Yellow diamond rough stone (makeable) 0.247ct rough stone
Sale price¥22,800
![[12/22 22:00] Mozambique Ruby 0.537ct Loose](http://store.karatz.jp/cdn/shop/files/S__226091018_b83ec1cc-8623-4ea3-a264-a44125729b7e.jpg?v=1766288263&width=1143)
[12/22 22:00] Mozambique Ruby 0.537ct Loose
Sale price¥15,800
![[12/22 22:00] Sri Lankan Blue Sapphire 0.645ct Loose](http://store.karatz.jp/cdn/shop/files/PC094150_085972b7-dff6-42bb-8830-f50e160129b5.jpg?v=1766288263&width=3010)
[12/22 22:00] Sri Lankan Blue Sapphire 0.645ct Loose
Sale price¥25,800
White topaz 16.06ct loose
Sale price¥25,800
Bicolor grossular garnet 0.782ct loose
Sale price¥12,800
Dioptase from Namibia 3.1mm/0.132ct loose Japanese-German edition
Sale price¥55,800
Paraiba tourmaline from Mozambique 0.207ct loose
Sale price¥9,800
Purple spinel 0.995ct loose stone
Sale price¥15,800
Diamond 0.052ct loose (trapeze cut, VS class equivalent)
Sale price¥6,980
Zircon 0.416ct loose
Sale price¥3,980
Colombian emerald cat's eye 0.110ct loose
Sale price¥9,800
Brazilian Paraiba tourmaline 0.420ct raw stone (CuO:1.6%, MnO:1.3%)
Sale price¥69,800
Paraiba tourmaline from Mozambique 0.229ct loose
Sale price¥9,800
![[12/16 22:00 Sale] Green Sapphire 0.607ct Loose](http://store.karatz.jp/cdn/shop/files/PC052530_2f588a47-b6eb-4fa9-bbf4-ed1074e3cf88.jpg?v=1765757288&width=2552)
[12/16 22:00 Sale] Green Sapphire 0.607ct Loose
Sale price¥12,800
![[12/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.170ct Loose](http://store.karatz.jp/cdn/shop/files/PC052497_8d01ae1d-df4a-445b-93cc-9dfe45a33753.jpg?v=1765757396&width=2729)
[12/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.170ct Loose
Sale price¥12,800
![[12/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.182ct Loose](http://store.karatz.jp/cdn/shop/files/PC052463_2ea7a367-cd92-45ff-8363-772d7c4d65a9.jpg?v=1765757397&width=2502)
[12/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.182ct Loose
Sale price¥9,800
![[12/20 22:00 Sale] Brazilian Gashenite 0.527ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC042693_ec625e46-9b90-4993-8f64-7daf50a84841.jpg?v=1766184426&width=4000)
[12/20 22:00 Sale] Brazilian Gashenite 0.527ct Loose Stone
Sale price¥8,800
![[12/14 22:00] Indian Moonstone 5.1mm/0.426ct Loose Stone (Rose Cut)](http://store.karatz.jp/cdn/shop/files/PC032082.jpg?v=1765629901&width=4000)
[12/14 22:00] Indian Moonstone 5.1mm/0.426ct Loose Stone (Rose Cut)
Sale price¥6,980
![[Available at 10 PM on December 20th] Mali Garnet (Grossular/Andradite Garnet) 0.872ct Loose Stone from the Republic of Mali with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/PC031911.jpg?v=1766184428&width=4000)
![[12/21 22:00] Myanmar Leuco Garnet 0.542ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/PC031825_fb076ca1-bb64-45c8-92b2-b3586aaf4973.jpg?v=1766184429&width=3153)
Australian opal 0.286ct loose
Sale price¥5,980
Oregon Sunstone 0.976ct loose
Sale price¥18,800
Dioptase from Namibia 0.229ct loose Japanese-German book
Sale price¥69,800
Bicolor Andesine 6mm/0.756ct loose
Sale price¥12,800
Pink spinel 0.409ct loose
Sale price¥6,980
Dioptase from Namibia 3.3mm/0.162ct loose Japanese-German edition
Sale price¥79,800
Pink tourmaline 0.516ct loose
Sale price¥5,980
American red beryl 2.9mm/0.094ct loose
Sale price¥29,800
Bicolor Andesine 6mm/0.852ct loose (color shift)
Sale price¥12,800
Bicolor Andesine 6mm/0.824ct loose (color shift)
Sale price¥12,800
Bicolor Andesine 6mm/0.699ct loose (color shift)
Sale price¥12,800
Bicolor Andesine 6mm/0.783ct loose (color shift)
Sale price¥12,800
Green sapphire 0.518ct loose (teal green)
Sale price¥8,800
Color change sapphire 0.946ct loose
Sale price¥29,800
Paraiba tourmaline from Mozambique 0.243ct loose
Sale price¥15,800
Unheated silky pink sapphire from Vietnam 0.426ct loose
Sale price¥9,800
Baddeleyite from Myanmar 0.279ct Ruth Japanese German edition
Sale price¥15,800
Montana Sapphire 3mm/0.155ct loose
Sale price¥18,800
Benitoite 0.091ct loose
Sale price¥22,800
[12545123 published] Yellow Beryl 0.696ct loose
Sale price¥3,980
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.