![[On sale July 12th at 10 PM] "Limited to 15 Stones" All stones with GIA certificate. Madagascar Grandidierite 1 stone loose (average 0.065ct) "Multiple purchase discount available"](http://store.karatz.jp/cdn/shop/files/collage_efaaa09c-4887-4d33-aeac-cd0ee5d3debd.png?v=1783774249&width=3000)
![[Sale starts 10PM on July 12] Limited 20 Stones: Grandidierite Single Stone Loose (Avg. 0.035ct) from Madagascar [Multiple Purchase Discount Available]](http://store.karatz.jp/cdn/shop/files/P1010194_ea02faf6-d812-4758-9e0c-262e6891b700.jpg?v=1783773075&width=4000)
Madagascar Grandidierite 0.156ct loose stone
Sale price¥35,800
Grandidierite 0.206ct loose
Sale price¥22,800
Grandidierite from Madagascar 0.168ct loose stone
Sale price¥35,800
![[Sale on May 4th at 10 PM] Madagascar Grandidierite 0.086ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P4073966_029012b1-2195-49be-997e-1e393d3778db.jpg?v=1777760660&width=2634)
[Sale on May 4th at 10 PM] Madagascar Grandidierite 0.086ct Loose Stone
Sale price¥17,800
![[On sale May 4th, 10 PM] Grandidierite from Madagascar 0.092ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/P4074036_ecb92780-10b5-41d4-9693-4d1c48e94cb6.jpg?v=1777760549&width=2795)
Grandidierite from Madagascar 0.115ct loose stone
Sale price¥24,800
Madagascar Grandidierite 0.132ct Loose Stone
Sale price¥26,800
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.