![[12560899] Russian Alexandrite 0.058ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_dc6f5ee9-b354-49f5-b931-77e61feec3b1.png?v=1760143802&width=2250)
[12560899] Russian Alexandrite 0.058ct Loose Stone
Sale price¥49,800
![[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)
![[12559908] Almandine Garnet 1.037ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA036784.jpg?v=1760142907&width=4000)
[12559908] Almandine Garnet 1.037ct Loose Stone
Sale price¥12,800
Cambodian Blue Zircon (Ratanakiri Blue) 2.822ct Loose Stone
Sale price¥98,000
Cambodian Blue Zircon (Ratanakiri Blue) 2.232ct Loose Stone
Sale price¥79,800
Cambodian Blue Zircon (Ratanakiri Blue) 1.513ct Loose Stone
Sale price¥59,800
Tanzanian bicolor sapphire 0.955ct loose stone
Sale price¥39,800
![[12534932] Purple Diamond (Treated) 0.088ct Loose](http://store.karatz.jp/cdn/shop/files/collage_dae8ba0f-ec3a-4947-a4d6-1cfe2f609e82.png?v=1760140674&width=2250)
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
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.