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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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Sold out ケニア産バイカラーグロッシュラーガーネット 0.479ct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) 0.265ctルース
Sold out Myanmar Leuco Garnet 0.324ct loose stone
Sold out YAG(イットリウムアルミニウムガーネット) 1.927ctルース
Sold out 《Limited to 20 stones》Demantoid Garnet Gacha, including Russian demantoid garnets, normally priced at 69,800 yen 《Multiple purchase discount available》
Sold out Tanzanian UV Type Mint Garnet 0.440ct Loose Stone
Sold out 0.628ct Mozambican Rhodolite Garnet Loose Stone
Sold out 0.562ct Almandine Garnet Loose Stone from Mozambique
Sold out Mozambique Almandine Garnet 0.961ct Loose
Sold out 【12562003掲載】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) 1.207ctルース
Sold out K18YG Russian Demantoid Garnet (horsetail inclusion) 4mm/0.382ct, Bekily Blue Garnet Ring
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) 0.960ctルース
Sold out Bekily Blue Garnet from Madagascar (color change garnet) 0.163ct loose
Sold out アルマンディンガーネット 3.214ctルース
Sold out 【12561951掲載】アメリカ産アントヒルガーネット 0.370ctルース
Sold out タンザニア産ロードライトガーネット 0.704ctルース
Sold out Tanzanian Color Change Garnet 0.509ct Loose Stone
Sold out Limited to 14 stones: Rainbow Garnet from Tenkawa Village, Nara Prefecture (faceted by Saint-Jay) [Multiple purchase discounts available]
Sold out Color Change Gacha💎 Russian alexandrite, Brazilian alexandrite, and Tanzanian color-change garnets, usually priced at ¥39,800. 《Discounts for multiple purchases available》
Sold out Tanzanian Spessartine Garnet 1.168ct Loose Stone
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) 0.989ct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) 1.458ct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) 1.827ct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) 1.951ctルース
Sold out Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture 4.8mm/0.612ct Loose
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) 0.639ctルース
Sold out 0.072 ct loose Bekily blue garnet (color-change garnet) from Madagascar
Sold out 0.316 ct Tanzanian Bicolor Grossular Garnet Loose Stone
Sold out Kenyan Tsavorite 0.347ct Loose Stone
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) 1.665ct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) 1.447ctルース
Sold out Anthill garnet from the USA (with forsterite) 0.578ct loose
Sold out Unmounted American Anthill Garnet, 4.0mm/0.269ct
Sold out American Anthill Garnet 5.0mm/0.641ct Loose
Sold out USA Ant Hill Garnet 4.0mm/0.277ct Loose Stone
Sold out Mali Garnet (Grossular/Andradite Garnet) from Mali 0.359ct Loose Stone
Sold out Hessonite Garnet from Sri Lanka 0.681ct Loose
Sold out Hessonite Garnet from Sri Lanka 0.530ct Loose Gemstone
Sold out Tanzanian Almandine Garnet 0.586ct Loose
Sold out Tanzanian Mandarin Garnet Loose Stone 0.315ct
Sold out Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.150ct Loose
Sold out Madagascar Bekily Blue Garnet (Color Change Garnet) 0.132ct Loose Stone
Sold out Kenyan Tsavorite 0.157ct Loose Gemstone
Sold out マダガスカル産デマントイドガーネット 38.035ct原石
Sold out Tanzanian Dragon Garnet 1.181ct Loose Stone
Sold out 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) 0.171ctルース
Sold out 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) 0.222ctルース
Sold out スターガーネット 14.600ctルース

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.