Brazilian Blue Topaz 2.912ct Loose
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 2.403ct loose stone
Sale price¥45,800
Synthetic Opal (Synthetic Black Opal) 1.467ct Loose
Sale price¥12,800
Synthetic Opal (Synthetic Black Opal) 1.532ct Loose
Sale price¥15,800
Spanish Sphalerite 6.494ct loose stone
Sale price¥69,800
Mexican Opal 1.639ct Loose (Contralus Opal)
Sale price¥29,800
Synthetic Opal (Synthetic Black Opal) 0.723ct Loose
Sale price¥15,800
Madagascar White Topaz (Needle-in Topaz) 4.086ct Loose
Sale price¥15,800
Brazilian Rubellite (Red Tourmaline) 3.844ct Loose Stone
Sale price¥128,000
Mozambique Aquamarine 3.301ct Loose Stone
Sale price¥59,800
Brazilian Limonite in Topaz 6.829ct loose stone
Sale price¥17,800
Brazilian Rubellite 3.845ct loose stone
Sale price¥198,000
Brazilian bicolor tourmaline 6.928ct loose stone (bicolor blue tourmaline)
Sale price¥298,000
Sri Lankan glass body (sapphire crystal) 7.983ct rough stone
Sale price¥29,800
Sri Lankan Moonstone 1.959ct Loose
Sale price¥12,800
Brazilian Flower Rutile in Quartz 5.122ct Loose Stone
Sale price¥9,800
Brazilian Dendritic Agate 1.679ct Loose Stone
Sale price¥8,800
Brazilian Dendritic Agate 2.788ct Loose Stone
Sale price¥9,800
Brazilian Dendritic Agate 3.575ct Loose Stone
Sale price¥9,800
![[Sakura Shape] Synthetic Sapphire 3.285ct Loose Stone](http://store.karatz.jp/cdn/shop/files/20260201_P2058639.jpg?v=1770602742&width=4000)
![[Yukinko Cut] Siberian Blue Quartz (Synthetic Quartz) 2.420ct Loose Stone](http://store.karatz.jp/cdn/shop/files/20260201_P2058831.jpg?v=1770603699&width=4000)
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.