January birthstone
Many people may have the impression that garnet is a red gemstone, but it actually comes in many shades. In fact, garnet is not the name of a single gemstone, but the name of a group of minerals with similar chemical compositions. Also, there are some types that are made by mixing several types, so I think it would be fun to collect gemstones with different colors and types. Some types appear to change color depending on the light source.
Karatz GemMagazine “ List of January birthstones and birthstones ”
![[Limited to 8 stones] Jam Gacha💎 1 Rainbow Garnet stone (January birthstone) from Tenkawa Village, Nara Prefecture [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/2025-05-158.54.00.png?v=1747266901&width=1279)
![[On sale from 10pm on 5/5] Limited to 11 stones Russian Demantoid Garnet (2-2.3mm, round cut, with horsetail) 1 stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010012_7b06a2e7-6557-46f8-94d4-32ff2a2d9f0b.jpg?v=1745885255&width=4000)
![[Koshu Precious Stones Plusthree] Sri Lankan Hessonite Garnet 0.99ct Loose Color "Collaboration" Patch](http://store.karatz.jp/cdn/shop/files/099ct-663728.jpg?v=1745883466&width=1038)
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.