![[10/12 22:00 Sale] Unheated Royal Blue Sapphire 0.640ct Loose AIGS](http://store.karatz.jp/cdn/shop/files/P8213746_91b36791-d977-4116-8c2b-7807206ada9b.jpg?v=1760067338&width=2552)
[10/12 22:00 Sale] Unheated Royal Blue Sapphire 0.640ct Loose AIGS
Sale price¥158,000
![[10/12 22:00 Sale] Pakistani Veirinite 0.145ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/P3269069_711f8c0b-cf71-4b00-b2a6-23c63a32ec2f.jpg?v=1760067158&width=3162)
[10/12 22:00 Sale] Pigeon Blood Ruby 3.7mm/0.230ct Loose Stone AIGS
Sale price¥39,800
![[10/12 22:00 Sale] Brazilian Unheated Pink Imperial Topaz (Sherry Pink) 0.231ct Loose](http://store.karatz.jp/cdn/shop/files/P6131239_d7dd86c8-ff42-4674-b268-2aa966cb3642.jpg?v=1760062877&width=3356)
![[10/12 22:00 Sale] Sri Lankan Star Sapphire 1.093ct Loose](http://store.karatz.jp/cdn/shop/files/P7182319_1ea19570-da1d-4cc0-81a8-d71f77f61972.jpg?v=1760060649&width=3138)
[10/12 22:00 Sale] Sri Lankan Star Sapphire 1.093ct Loose
Sale price¥8,800
![[On Sale 10/11 at 10 PM] Brazilian Paraiba Tourmaline 0.170ct Loose Stone (CuO: 2.1%, MnO: 1.1%)](http://store.karatz.jp/cdn/shop/files/P9055559_913b3161-0377-4e63-a7b4-5b2f943979a1.jpg?v=1760050993&width=3296)
![[10/12 22:00 Sale] Pigeon Blood Ruby 0.320ct Loose Stone AIGS](http://store.karatz.jp/cdn/shop/files/P8214595_5dd833e9-551d-49c8-b63e-13d6fb853ea5.jpg?v=1760049498&width=2875)
[10/12 22:00 Sale] Pigeon Blood Ruby 0.320ct Loose Stone AIGS
Sale price¥48,800
![[10/11 22:00 Sale] Indian Moonstone 1.046ct Loose](http://store.karatz.jp/cdn/shop/files/PA033691.jpg?v=1759637888&width=4000)
[10/11 22:00 Sale] Indian Moonstone 1.046ct Loose
Sale price¥9,800
![[10/10 22:00 Sale] Brazilian Green Tourmaline 0.490ct Loose](http://store.karatz.jp/cdn/shop/files/PA033767_8fe0af6a-fc7f-40c7-b854-d3104963a93d.jpg?v=1759637339&width=2710)
![[On Sale at 10 PM on October 8th] Tanzanian Sunstone (Illusion Sunstone) 0.347ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034357_147fe577-6d33-48e8-9d87-b0ab85c6c7c9.jpg?v=1759633891&width=3194)
![[On Sale 10/7 at 10 PM] [Cat Cut] Brazilian Goethite-in-Amethyst 0.561ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034391.jpg?v=1759630940&width=4000)
Unheated Brazilian Color Change Paraiba Tourmaline 0.30ct Loose GIA
Sale price¥1,280,000
YAG (Yttrium Aluminum Garnet) 6.5mm/1.548ct loose stone
Sale price¥12,800
Bicolor sapphire 0.292ct loose
Sale price¥22,800
Lottery Sale 092109_Brazilian Blue Anatase 0.424ct Loose Stone
Sale price¥69,800
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.