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1月誕生石

January birthstone

Many people may have the impression that garnet is a red gemstone, but it actually comes in many shades. In fact, garnet is not the name of a single gemstone, but the name of a group of minerals with similar chemical compositions. Also, there are some types that are made by mixing several types, so I think it would be fun to collect gemstones with different colors and types. Some types appear to change color depending on the light source.

Karatz GemMagazine List of January birthstones and birthstones

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coming soon K18 ロシア産デマントイドガーネット(ホーステール認む) 3.5mm/0.155ct ダイヤモンド0.04ctリング鑑別書
Sold out Russian Demantoid Garnet (Horsetail) 5.8mm/0.851ct Loose Stone
Sold out 《Limited to 5 stones》Garnet (KEN Cut, 3.4-3.7mm)《Multiple purchase discount available》
Sold out アメリカ産アントヒルガーネット 0.392ctルース
Sold out タンザニア産ドラゴンガーネット 0.735ctルース
Sold out K18 ロシア産デマントイドガーネット(ホーステール認む) 4.6mm/0.44ctct ダイヤモンド 0.57ctリング鑑別書
coming soon 【12562242掲載】アメリカ産アントヒルガーネット 0.336ctルース
Sold out ロシア産デマントイドガーネット(ホーステール認む) 0.093ctルース
Sold out ロシア産デマントイドガーネットキャッツアイ(ホーステール認む) 1.170ctルース
Sold out ブラジル産スペサルティンガーネット 0.923ctルース
Sold out ミャンマー産ピンクグロッシュラーガーネット 0.558ctルース
Sold out ナイジェリア産マンダリンガーネット 1.347ctルース
Sold out [On sale 8/14 at 10 PM] Limited to 10 Stones: Rhodolite Garnet Gacha with a chance to win a "Dandelion Cut 9mm" collaboration with Shimizu Kiseki, normally 35,800 yen (Multiple purchase discount available)
Sold out マダガスカル産ベキリーブルーガーネット(カラーチェンジガーネット) 1.087ctルース
Sold out 奈良県天川村産レインボーガーネット(アンドラダイトガーネット) 1.926ctルース
Sold out 奈良県天川村産レインボーガーネット(アンドラダイトガーネット) 2.763ctルース
Sold out 《Limited to 10 stones》Color change gemstone gacha: color change zircon, alexandrite, color change garnet, etc. 《Multi-purchase discount available》
Sold out ミャンマー産ピンクグロッシュラーガーネット 0.481ctルース
Sold out 《Limited to 7 stones》American Ant Hill Garnet (round cut, approx. 3mm) 《Multiple purchase discount available》
Sold out アルマンディンガーネット 0.660ctルース
Sold out [Limited to 7 stones] Anthill Garnet 1 stone loose (oval cut, approx. 4x3mm) [Multiple purchase discount available]
Sold out 《Limited to 12 Stones》Garnet Gacha including 8mm Dandelion-Cut Rhodolite Garnet (normally 39,800 yen) 《Multiple Purchase Discount Available》

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.