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5月誕生石

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 エメラルド3.0mm/0.113ctルース
Sold out 翡翠(ヒスイ) 2.161ctルース
Sold out Jade (Jade) 0.437ct Ruth Japanese-German Dictionary
Sold out エメラルド 0.214ctルース
Sold out コロンビア産ノンオイルエメラルド 0.410ctルース GIA
Sold out エメラルド 0.399ctルース
Sold out ロシア産ノンオイルエメラルド 0.30ctルース GIA付
Sold out 【カラフリ】Pt900エメラルド1.31ct・ダイヤモンドリング - カラッツSTORE
Sold out コロンビア産エメラルド 310.000ct原石
Sold out 【12525386掲載】コロンビア産ノンオイルエメラルド 0.240ctルース
Sold out Colombian oil-free emerald 0.39ct loose GIA
Sold out コロンビア産ノンオイルエメラルド 0.430ctルース
Sold out コロンビア産ノンオイルエメラルド 0.290ctルース
Sold out コロンビア産ノンオイルエメラルド 0.630ctルース GIA付(ブリオレットカット)
Sold out K18エメラルドペンダント(ネックレス) - カラッツSTORE
Sold out 【12524344掲載】オレンジ翡翠(ヒスイ) 11.944ctルース
Sold out 【12523420掲載】ノンオイルエメラルド 0.200ctルース
Sold out K18ルビー0.12ct・エメラルド・ダイヤモンドペンダント(ネックレス) - カラッツSTORE
Sold out K18エメラルド0.12ct ペンダント(ネックレス) - カラッツSTORE
Sold out K18エメラルド0.17ct ペンダント(ネックレス) - カラッツSTORE
Sold out K18エメラルド・ダイヤモンドペンダント(ネックレス) - カラッツSTORE
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 Pt900エメラルド0.17ct・ダイヤモンドリング - カラッツSTORE
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 【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 エメラルド 0.111ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.150ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.129ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.616ctルース - KARATZ STORE|カラッツSTORE
Sold out Pt950コロンビア産ノンオイルエメラルド0.48ct リング GIA付 - KARATZ STORE|カラッツSTORE
Sold out K18WGエメラルドリング - KARATZ STORE|カラッツSTORE
Sold out K18WGエメラルドリング - KARATZ STORE|カラッツSTORE
Sold out K18WGエメラルドリング - カラッツSTORE
Sold out Colombian non-oil trapiche emerald 2.00ct loose GIA
Sold out K18WGエメラルド0.18ct ペンダント(ネックレス) - KARATZ STORE|カラッツSTORE
Sold out Pt950ノンオイルエメラルド0.50ct リング GIA付 - KARATZ STORE|カラッツSTORE
Sold out ノンオイルエメラルド 0.29ctルース GIA付 - 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エメラルドリング - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.193ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.08ctルース - KARATZ STORE|カラッツSTORE
Sold out エメラルド 0.106ctルース - 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.

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 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.