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chalcedony

Chalcedony is a polycrystalline quartz that exists in many types. It is broadly classified into three types: agate, jasper, and others. Many of them have unique colors and patterns, making them fun to collect.

Karatz GemMagazine
" Chalcedony "

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[Giveaway Pair Tickets Until August 31st] Fukuoka SoftBank Hawks "Young Hawks Ring" - Single Type | SV925 with Yellow Chalcedony

[Giveaway Pair Tickets Until August 31st] Fukuoka SoftBank Hawks "Young Hawks Ring" - Single Type | SV925 with Yellow Chalcedony Sale price¥25,800
Purple Chalcedony 1 stone《Discount available for multiple purchases》

Purple Chalcedony 1 stone《Discount available for multiple purchases》 Sale price¥3,980
Gem Gacha💎Chalcedony Gacha (1 in 5 will win a camellia cut)《Multiple purchase discounts available》

Gem Gacha💎Chalcedony Gacha (1 in 5 will win a camellia cut)《Multiple purchase discounts available》 Sale price¥3,980
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
[Giveaway Pair Tickets Until August 31st] Fukuoka SoftBank Hawks "Young Hawks Ring" - Double Type | SV925, Yellow Chalcedony, White Chalcedony

[Giveaway Pair Tickets Until August 31st] Fukuoka SoftBank Hawks "Young Hawks Ring" - Double Type | SV925, Yellow 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
Officially Licensed Product: Yokohama DeNA Baystars Home Blue Ring - Single Type | SV925, White Chalcedony

Officially Licensed Product: Yokohama DeNA Baystars Home Blue Ring - Single Type | SV925, White Chalcedony Sale price¥25,800
ブラジル産ホワイトカルセドニー 0.925ctルース

Brazilian White Chalcedony 0.925ct Loose Stone Sale price¥5,980
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 【カメリアカット】パープルカルセドニー 12mm/4.959ct《コラボ》ルース ワッペン付

[Camellia Cut] Purple Chalcedony 12mm/4.959ct《Collaboration》Loose with emblem
Sold out ブラジル産ホワイトカルセドニー 2.996ctルース

[Cat Cut] Brazilian White Chalcedony 2.996ct Loose
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 【カメリアカット】パープルカルセドニー 11mm/3.845ct《コラボ》ルース ワッペン付 - カラッツSTORE

[Camellia Cut] Purple Chalcedony 11mm/3.845ct《Collaboration》Loose with emblem

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 【poooohpigu様専用】カルセドニー 2.768ctルース - KARATZ STORE｜カラッツSTORE

[Konpeito] Chalcedony 2.768ct loose

Sold out 【12520618掲載】カルセドニー 2.61ctルース

[Konpeito] Sea blue chalcedony 2.607ct loose

Sold out K18YGマダガスカル産ペツォッタイト・アクアブルーカルセドニーハーフエタニティリング

[On sale from 10pm on 5/4] K18YG Madagascar petzotite and aqua blue chalcedony half eternity ring
Sold out ブラジル産ホワイトカルセドニー 0.308ctルース

Brazilian White Chalcedony 0.308ct Loose Stone
Sold out K18シーブルーカルセドニーピアス

K18 sea blue chalcedony earrings

Sold out 【金平糖】カルセドニー 2.760ctルース - カラッツSTORE

[Konpeito] Chalcedony 2.760ct loose

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.