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2月誕生石

February birthstone

The birthstone for February is amethyst and cat's eye chrysoberyl .

Amethyst refers to purple quartz. There is also a gemstone called ametrine, which is a combination of amethyst and yellow citrine. It is often cut in special shapes such as plant or flower shapes, so it is fun to collect different cuts and can be enjoyed as everyday jewelry.

Chrysoberyl cat's eye is one of the varieties of chrysoberyl. When it is cabochon cut (dome-shaped cut) and light is shone on it from above, it has a cat's eye effect (chatoyancy), where a streak of light appears in the center. There are many other gemstones with the cat's eye effect, but this is the most representative and is sometimes simply called "cat's eye".


Carats Gem Magazine
" February birthstone and birthday stone list "

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KARATZ Custom Made

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.

KARATZ・Five Commitments

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.