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May birthstone

The birthstone for May is emerald / jade .

Emerald is a type of beryl, the same mineral as aquamarine, and is the name given to beryl, which contains chromium and has a green color. One of the characteristics is that many of them have scratches and inclusions inside. The most famous and high-quality production area is Colombia. The emerald cut is said to have originated from Colombian emeralds.

Jade is also a gemstone with an impressive green color, but it actually comes in a wide variety of colors, including purple, orange, and white. It is also famous for being mined in Japan, mainly in Niigata and Toyama prefectures, and has been selected as Japan's national stone. Highly transparent green jade called ``Roukan'' is the most valuable.

Karatz GemMagazine
" List of May birthstones and birthstones "

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Sold out K18エメラルド0.14ct ペンダント(ネックレス) - カラッツSTORE
Sold out K18血赤珊瑚1.0ct ・エメラルドペンダント(ネックレス) - カラッツSTORE
Sold out K18血赤珊瑚1.36ct・エメラルド・ダイヤモンドリング - カラッツSTORE
Sold out 【12522364掲載】エメラルドキャッツアイ 0.255ctルース
Sold out K18血赤珊瑚・エメラルド ブレスレット - カラッツSTORE
Sold out K18血赤珊瑚0.61ct・エメラルドリング - カラッツSTORE
Sold out Pt900エメラルド0.17ct・ダイヤモンドリング - カラッツSTORE
Sold out 【12521735掲載】エメラルド 4.746ctルース
Sold out 【12521590掲載】コロンビア産ノンオイルエメラルド 0.420ctルース
Sold out 【12521589掲載】コロンビア産エメラルド 1.14ctルース
Sold out 【宝石商の道具】冷却ヒビ入れ染色クォーツ・天然エメラルド見分け2点セット - KARATZ STORE|カラッツSTORE
Sold out 【12520860掲載】コロンビア産エメラルド 5.950ct原石
Sold out K18エメラルド0.16ctピアス - KARATZ STORE|カラッツSTORE
Sold out K18エメラルド0.08 0.08 ピアス - KARATZ STORE|カラッツSTORE
Sold out 【11519999掲載】コロンビア産エメラルド 1.98ctルース
Sold out コロンビア産エメラルド 0.87ctルース - KARATZ STORE|カラッツSTORE
Sold out K18血赤珊瑚1.07ct ・エメラルド・ルビーリング - KARATZ STORE|カラッツSTORE
Sold out K18エメラルドリング - KARATZ STORE|カラッツSTORE
Sold out K18エメラルド0.17ct リング - KARATZ STORE|カラッツSTORE
Sold out K18エメラルド0.089ct リング - KARATZ STORE|カラッツSTORE
Sold out ノンオイルエメラルド 0.360ctルース AIGS付 - KARATZ STORE|カラッツSTORE
Sold out エメラルド 198.513ct原石 - KARATZ STORE|カラッツSTORE
Sold out エメラルド 62.696ct原石 - KARATZ STORE|カラッツSTORE
Sold out コロンビア産エメラルド 55.123ct原石 - KARATZ STORE|カラッツSTORE
Sold out エメラルド 50.260ct原石 - KARATZ STORE|カラッツSTORE
Sold out ノンオイルエメラルド 0.180ctルース GIA付 - KARATZ STORE|カラッツSTORE
Sold out Oil-free emerald 0.260ct loose with GIA
Sold out トラピッチェエメラルド 0.571ctルース - KARATZ STORE|カラッツSTORE
Sold out 翡翠(ヒスイ) 10.366ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.346ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.894ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 545ct原石 - KARATZ STORE|カラッツSTORE
Sold out エメラルド 700ct原石 - KARATZ STORE|カラッツSTORE
Sold out エメラルド 650ct原石 - KARATZ STORE|カラッツSTORE
Sold out エメラルド 865ct原石 - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.398ctルース - KARATZ STORE|カラッツSTORE
Sold out ペリドット 7.456ct/エメラルド0.271ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.310ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルドキャッツアイ 0.52ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.361ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.70ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.286ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.268ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.488ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド2石セット 0.451ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 40g 原石 - KARATZ STORE|カラッツSTORE
Sold out エメラルド 90g原石 - KARATZ STORE|カラッツSTORE
Sold out イエローダイヤモンド 0.592ctルース(LIGHT YELLOW, VS1,エメラルドカット) - KARATZ STORE|カラッツSTORE

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.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.