![[Sold at 10 PM on September 7th] Pt900 Brazilian Swiss Blue Topaz 0.41ct Cat Cut Earrings](http://store.karatz.jp/cdn/shop/files/collage_b0e69240-6053-4a80-91cb-b76080613627.png?v=1757161767&width=2000)
Montebrasite 4.1mm 2 stone pair loose (green)
Sale price¥6,980
[Posted 12529980] Paraiba tourmaline from Brazil 1.649ct loose
Sale price¥18,800
Particolor tourmaline 24.147ct loose
Sale price¥49,800
![[Dandelion cut] Morganite 7mm/1.02ct loose with patch](http://store.karatz.jp/cdn/shop/files/102ct-439651.jpg?v=1756849922&width=1200)
[Dandelion cut] Morganite 7mm/1.02ct loose with patch
Sale price¥49,800
![[On sale at 10 PM on September 5th] [Limited to 3 stones] Brazilian Elestial Amethyst (1 loose stone, 3.5-3.9mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_a4907829-a1ef-40d2-ae34-572edef35c78.png?v=1756866168&width=2000)
Brazilian blue tourmaline 0.353ct loose
Sale price¥9,800
Dumortierite in quartz 4.110ct loose
Sale price¥18,800
Aquamarine 68.040ct loose
Sale price¥39,800
Bicolor tourmaline 1.050ct loose
Sale price¥8,800
Bicolor tourmaline 0.780ct loose
Sale price¥9,800
Brazilian Pink Imperial Topaz 2.794ct Loose Japanese-German Edition
Sale price¥128,000
Pink tourmaline cat's eye 3.800ct loose
Sale price¥8,800
Paraiba tourmaline from Brazil 0.224ct loose (CuO:0.8%, MnO:1.7%)
Sale price¥29,800
Paraiba tourmaline from Brazil 0.203ct loose (CuO: 0.9%, MnO: 2.6%)
Sale price¥29,800
Brazilian Paraiba tourmaline 0.455ct raw stone (CuO: 0.9%, MnO: 2.2%)
Sale price¥15,800
Brazilian Paraiba tourmaline 0.448ct raw stone (CuO:2.7%, MnO:2.0%)
Sale price¥19,800
Brazilian Paraiba tourmaline 0.156ct raw stone (CuO:2.5%, MnO:0.5%)
Sale price¥15,800
[Sakura Incut] Sky Blue Topaz 12mm Loose with Patch
Sale price¥39,800
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.