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sea ​​blue chalcedony

Sea blue chalcedony has an impressive refreshing blue color reminiscent of the sea of ​​a southern island. It is a type of chalcedony, which is a polycrystalline quartz. Sea blue chalcedony mainly produces this color through coloring. They range from semi-transparent to opaque, and the atmosphere varies depending on the transparency and cut, so comparing them is one way to enjoy them.

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Officially licensed product: Yokohama DeNA Baystars home blue ring - double type | SV925, sea blue chalcedony, white chalcedony

Officially licensed product: Yokohama DeNA Baystars home blue ring - double type | SV925, sea blue chalcedony, white chalcedony Sale price¥35,800
Officially licensed product: Yokohama DeNA Baystars visitor's blue ring - double type | SV925, sea blue chalcedony, white chalcedony

Officially licensed product: Yokohama DeNA Baystars visitor's blue ring - double type | SV925, sea blue chalcedony, white chalcedony Sale price¥35,800
Officially licensed product: Yokohama DeNA Baystars visitor's blue ring - single type | SV925, sea blue chalcedony

Officially licensed product: Yokohama DeNA Baystars visitor's blue ring - single type | SV925, sea blue chalcedony Sale price¥25,800
ティンカーベルクォーツ（ピンクファイヤークォーツ） 3.070ctルース

Sea blue chalcedony 19.358ct loose Sale price¥29,800
シーブルーカルセドニー 6.964ctルース

Sea blue chalcedony 6.964ct loose Sale price¥7,980
Sold out Water Play 13 Stone Set (Santa Maria Aquamarine, Sea Blue Chalcedony, Blue Zircon, Diamond, etc.) Half Eternity Ring Set (2.0mm)

Water Play 13 Stone Set (Santa Maria Aquamarine, Sea Blue Chalcedony, Blue Zircon, Diamond, etc.) Half Eternity Ring Set (2.0mm)
Sold out 【金平糖】シーブルーカルセドニーペンダントトップ

[Konpeito] Sea blue chalcedony pendant top

Sold out シーブルーカルセドニー 5.627ctルース

Sea blue chalcedony 5.627ct loose

Sold out 【金平糖】シーブルーカルセドニー 2.606ctルース - カラッツSTORE

[Konpeito] Sea blue chalcedony 2.606ct loose

Sold out 【12520618掲載】カルセドニー 2.61ctルース

[Konpeito] Sea blue chalcedony 2.607ct loose

coming soon 【22602044掲載】SV925 シーブルーカルセドニー ペンダントトップ（ネックレストップ）

[Published on 22602044] SV925 Sea Blue Chalcedony Pendant Top (Necklace Top) Sale price¥39,800
Sold out K18シーブルーカルセドニーピアス

K18 sea blue chalcedony earrings

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.