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10月誕生石

October birthstone

October's birthstone is opal tourmaline .

Opal is known for its play-of-color effect, which shows an aurora-like glow of seven colors on its surface, but some types do not show this play-of-color effect. Not only are there many types, but each one has a different play of color, so I think it's perfect for those who like unique gemstones.

Tourmaline is a gemstone with so many color variations that it is said that there is no other color. Some are called by different names depending on their color, such as Paraiba tourmaline and rubellite . Some stones have multiple colors in one stone, and others look like watermelons, so I think it's fun to collect a variety of stones and enjoy the different colors.

Karatz GemMagazine
" List of October birthstones and birthstones "

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Sold out 【カラフリ】K18WGバイカラートルマリンキャッツアイ2.80ct・ダイヤモンド0.54ctリング - カラッツSTORE
Sold out 【12525791掲載】バイカラートルマリン 0.520ctルース
Sold out Paraiba tourmaline stone from Brazil
Sold out 【カラフリ】Pt900ブラックオパール0.89ct リング - カラッツSTORE
Sold out [Dandelion cut] Pink tourmaline 6mm loose (collaboration) with emblem
Sold out 【さくらインカット】ピンクトルマリン 1.100ctルース - カラッツSTORE
Sold out 【さくらインカット】ピンクトルマリン 1.03ctルース - カラッツSTORE
Sold out ブラジル産パライバトルマリン 0.232ctルース 中宝分析報告書付
Sold out K18オパールペンダント(ネックレス) - カラッツSTORE
Sold out K18PGピンクトルマリンリング - カラッツSTORE
Sold out K18アメジスト・アクアマリン・ピンクトルマリンリング - カラッツSTORE
Sold out K18ピンクトルマリンピンキーリング - カラッツSTORE
Sold out ブルーオパール 4.39ctルース
Sold out 【11524995掲載】モザンビーク産パライバトルマリン 0.43ctルース
Sold out 【12524969掲載】ブラジル産パライバトルマリン 0.44ctルース
Sold out Pt900ブラジル産パライバトルマリン0.10ct ペンダントトップ(ネックレストップ) - カラッツSTORE
Sold out Pt950ブラジル産パライバトルマリン0.08ct ペンダントトップ(ネックレストップ) - カラッツSTORE
coming soon 【10/13 22時販売】モザンビーク産パライバトルマリン 1.309ctルース(酸化鉄インクルージョン含む)
coming soon 【10/12 22時販売】オーストラリア産クリスタル&ホワイトオパール13石ハーフエタニティリングセット(2.0mm)
Sold out ペルー産バイカラーブルーオパール 0.492ctルース
coming soon 【10/12 22時販売】《限定8石》ミニカイトカット1石ルース(パライバトルマリン2石含む、グリーンベリル、ルビー、ペリドットなど)《複数購入割引有》

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's Initiatives and Social Contributions

We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.

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.