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hackmanite

Hackmanite is a variety of sodalite. It is also known for its unique property of changing color when exposed to ultraviolet light and not returning to its original color for a while. Colorless, white, gray, blue, purple, red-purple and other shades are found.

Karatz GemMagazine
" Hackmanite "

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Hackmanite 0.698ct loose Sale price¥19,800

Hackmanite 0.506ct loose Sale price¥49,800

Sold out Hackmanite 1 stone (purple)
Sold out アフガニスタン産ハックマナイト 0.793ctルース
Sold out ハックマナイト 0.507ctルース
Sold out Night purple 13 stone set (hackmanite, tanzanite, black spinel, diamond, etc.) Half eternity ring set (2.0mm)
Sold out ハックマナイト 0.076ctルース
Sold out ハックマナイト 0.100ctルース
Sold out ハックマナイト 0.195ctルース
Sold out Afghanistan Hackmanite 0.212ct loose stone
Sold out アフガニスタン産ハックマナイト 0.115ctルース
Sold out ハックマナイト 1.060ctルース
Sold out Hackmanite 0.750ct loose

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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の取り組みと社会貢献

業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。

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.