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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Limited to 10 sets: Rainbow garnet rough and loose stone set of 2 (average 5.3 carats) from Tenkawa Village, Nara Prefecture. Discounts for multiple purchases available.

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Brazilian Hessonite Garnet 2.664ct Loose Stone

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Tanzanian Garnet 8.0mm/2.538ct Loose Stone

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[Takeshi Yamamoto] Garnet 8.637ct loose stone

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Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.213ct Loose Stone

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[E_27 Yurakucho Marui Take-out] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.210ct Loose

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[E_27 Yurakucho Marui Take-out] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.174ct Loose

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Botswana Garnet 33.972ct Loose Stone Patch

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マダガスカル産ベキリーブルーガーネット0.873ctルース日独鑑【宝石図鑑掲載】

Bekiri Blue Garnet from Madagascar 0.873ct Loose Stone, Japan-Germany Gemstones [Featured in the Gemstone Encyclopedia]

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Tanzanian Mandarin Garnet 0.751ct Loose Stone [Featured in the Gemstone Encyclopedia]

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Russian Demantoid Garnet Cat's Eye (Horsetail Recognized) 2.9mm/0.156ct Loose Stone

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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） 1.364ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 1.364ct loose

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1.315ct Spessartine Garnet Loose Stone from Madagascar

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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） 0.610ctルース

Russian demantoid garnet cat's eye (horsetail recognized) 2mm/0.061ct loose

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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） 1.416ctルース

Rainbow garnet (andradite garnet) 1.416ct loose from Tenkawa Village, Nara Prefecture

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[Sakura Shape] Tanzanian Rhodolite Garnet 6.3mm/1.206ct Loose Stone

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[Sakura Shape] YAG (Yttrium Aluminum Garnet) 8.1mm/3.937ct Loose Stone

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[Dandelion Cut] Almandine Garnet 8mm/2.450ct Loose Stone Patch

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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） 1.655ctルース

Rainbow Garnet (Andradite Garnet) 1.655ct Loose Stone from Tenkawa Village, Nara Prefecture

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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） 2.895ctルース

Rainbow Garnet (Andradite Garnet) 2.895ct Loose Stone from Tenkawa Village, Nara Prefecture

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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） 0.416ctルース

Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.416ct Loose Stone

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Rhodolite Garnet 2.203ct Loose Stone

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Almandine Garnet 1.317ct Loose Stone

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K18YG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）1.11 ctペンダントトップ（ネックレストップ）

K18YG Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture 1.11ct Demantoid Garnet Pendant Top (Necklace Top)

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K18YGロシア産デマントイドガーネット（ホーステール認む）0.11ct・イエローダイヤモンドリング

K18YG Russian Demantoid Garnet (Horsetail) 0.11ct Yellow Diamond Ring

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Pt950ナイジェリア産モルガナイト0.522ct・ロードライトガーネットリング

Pt950 Nigerian Morganite 0.522ct Rhodolite Garnet Ring

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Tanzanian Mandarin Garnet 0.446ct Loose Stone

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Tanzania Dragon Garnet 1 Stone Loose {Multiple purchase discount available}

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Tanzanian Dragon Garnet 0.533ct Loose Stone

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Tanzanian Dragon Garnet 0.716ct Loose Stone

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Tanzanian Dragon Garnet 0.644ct Loose Stone

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Tanzanian Dragon Garnet 0.589ct Loose Stone

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Spessartine Garnet 1.040ct Loose

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Garnet in Quartz 6.370ct Loose Stone

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【さくらシェイプ】マダガスカル産ロードライトガーネット 7mm/1.551ctルースワッペン

[Sakura Shape] Madagascar Rhodolite Garnet 7mm/1.551ct Loose Stone Patch

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[Camellia Cut] Almandine Garnet 8mm/2.461ct {Collaboration} Loose Patch

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Almandine Garnet 1.837ct Loose Stone

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Limited to 2 stones: Yttrium Aluminum Garnet (YAG) (double rose cut) 1 loose stone (multiple purchase discounts available)

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Limited to 8 stones: 1 loose spessartine garnet from Tanzania. Discounts available for multiple purchases.

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[Camellia Cut] Almandine Garnet 10mm/3.825ct Loose Stone

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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） 0.146ctルース

Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.146ct Loose Stone

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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） 0.103ctルース

Bekily Blue Garnet from Madagascar (color change garnet) 0.103ct loose

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Tanzanian Grape Garnet 0.657ct Loose Stone

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Tanzanian Grape Garnet 0.756ct Loose Stone

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Dragon Garnet x 1 (2.5mm, round cut) {Multiple purchase discount available}

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タンザニア産ロードライトガーネット 9mm/3.066ct《コラボ》ルースワッペン

[Sakura Incut] Tanzanian Rhodolite Garnet 9mm/3.066ct {Collaboration} Loose Patch

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【さくらインカット】ロードライトガーネット 10mm/4.097ct《コラボ》ルースワッペン

[12541299 published] Rhodolite garnet 4.097ct loose

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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） 0.102ctルース

Bekily Blue Garnet from Madagascar (color change garnet) 0.102ct loose

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.

KARATZ・Five Commitments