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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 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） 0.881ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 0.881ct 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） 2.030ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 2.030ct loose
Sold out Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture, 1 stone loose (discount available for multiple purchases)

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture, 1 stone loose (discount available for multiple purchases)
Sold out K18ベキリーブルーガーネット（カラーチェンジガーネット）0.379ct リング

K18 Madagascar Bekily Blue Garnet (Color Change Garnet) 0.379ct Blue Diamond Ring
Sold out [Colorful] K18WG UV type mint garnet ring

[Colorful] K18WG UV type mint garnet ring
Sold out アルマンディンガーネット 7.470ctルース

[Camellia cut] Almandine garnet 12mm/7.470ct loose
Sold out アルマンディンガーネット 0.995ctルース

[Dandelion cut] Almandine garnet 6mm/0.995ct loose

Sold out アルマンディンガーネット 1.027ctルース

[Dandelion cut] Almandine garnet 6mm/1.027ct loose
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） 0.669ct原石

Russian demantoid garnet (horsetail recognized) 0.669ct rough stone
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） 0.667ct原石

Russian demantoid garnet (horsetail recognized) 0.667ct rough stone
Sold out 【12545822掲載】アルマンディンガーネット 1.022ctルース

[Dandelion cut] Almandine garnet 6mm/1.022ct loose with patch

Sold out Bekily Blue Garnet from Madagascar (color change garnet) 0.252ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 0.252ct loose

Sold out Malayan garnet 6mm/1.245ct loose

Malayan garnet 6mm/1.245ct loose
Sold out Leuko Garnet from Burma 0.408ct loose

Leuko Garnet from Burma 0.408ct loose
Sold out 1 stone mint garnet from Tanzania (pear shape cut)《Discount available for multiple purchases》

1 stone mint garnet from Tanzania (pear shape cut)《Discount available for multiple purchases》
Sold out [Mr. Sanjay] Almandine garnet 1.632ct loose

[Mr. Sanjay] Almandine garnet 1.632ct loose

Sold out [Mr. Sanjay] Almandine Garnet 1.133ct loose

[Mr. Sanjay] Almandine Garnet 1.133ct loose
Sold out Bekily Blue Garnet from Madagascar (color change garnet) 0.507ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 0.507ct loose
Sold out マラヤガーネット 0.647ctルース

Malayan garnet from Tanzania 0.647ct loose

Sold out タンザニア産マラヤガーネット 0.641ctルース

Malayan garnet from Tanzania 0.641ct loose

Sold out タンザニア産マラヤガーネット 0.576ctルース

Malayan garnet from Tanzania 0.576ct loose

Sold out マダガスカル産デマントイドガーネット 22.914ct原石

Demantoid garnet 22.914ct rough stone from Madagascar
Sold out マダガスカル産デマントイドガーネット 9.614ct原石

Demantoid garnet 9.614ct rough stone from Madagascar
Sold out マダガスカル産デマントイドガーネット 15.349ct原石

Demantoid garnet 15.349ct rough stone from Madagascar

Sold out マダガスカル産デマントイドガーネット 44.971ct原石

Demantoid garnet from Madagascar 44.971ct rough stone

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） 0.236ctルース

Russian demantoid garnet (horsetail recognized) 0.236ct loose

Sold out Bekily Blue Garnet from Madagascar (color change garnet) 2.6mm/0.098ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 2.6mm/0.098ct loose
Sold out Bekily Blue Garnet from Madagascar (color change garnet) 2.6mm/0.101ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 2.6mm/0.101ct loose
Sold out Bekily Blue Garnet from Madagascar (color change garnet) 0.248ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 0.248ct loose

Sold out Bekily Blue Garnet from Madagascar (color change garnet) 0.149ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 0.149ct loose

Sold out Bekily Blue Garnet from Madagascar (color change garnet) 0.136ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 0.136ct loose

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

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

Sold out Bekily Blue Garnet from Madagascar (color change garnet) 3mm/0.132ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 3mm/0.132ct loose

Sold out Bekily Blue Garnet from Madagascar (color change garnet) 3mm/0.109ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 3mm/0.109ct loose

Sold out アルマンディンガーネット 2.421ctルース

Almandine garnet 2.421ct loose

Sold out [Sales End on November 15th] "Bungo to Alchemist" x KARATZ Collaboration Jewelry Bungo Ring [Dazai Osamu Model] {Almandine Garnet, Yellow Diamond}

[Sales End on November 15th] "Bungo to Alchemist" x KARATZ Collaboration Jewelry Bungo Ring [Dazai Osamu Model] {Almandine Garnet, Yellow Diamond}

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） 0.231ctルース

Russian demantoid garnet cat's eye (horsetail recognized) 0.231ct loose
Sold out Bekily Blue Garnet from Madagascar (color change garnet) 0.245ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 0.245ct loose
Sold out [Mr. Sanjay] Almandine garnet 6.608ct loose

[Mr. Sanjay] Almandine garnet 6.608ct loose

Sold out アルマンディンガーネット 5.208ctルース

[Mr. Sanjay] Almandine garnet 5.208ct loose
Sold out Set of 2 stones: 1 YAG (yttrium aluminum garnet) stone (canary yellow, emerald cut) + 1 yellow sapphire rough stone (discount available for multiple purchases)

Set of 2 stones: 1 YAG (yttrium aluminum garnet) stone (canary yellow, emerald cut) + 1 yellow sapphire rough stone (discount available for multiple purchases)
Sold out グレープガーネット 0.597ctルース

[KEN] Grape garnet 0.597ct loose
Sold out モザンビーク産ロードライトガーネット1石ルース（変形のハートシェイプカット,4.5mm）《複数購入割引有》

1 stone loose rhodolite garnet from Mozambique (deformed heart-shaped cut, 4.5mm)《Discount available for multiple purchases》
Sold out Bekily Blue Garnet from Madagascar (color change garnet) 0.434ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 0.434ct loose
Sold out Bekily Blue Garnet from Madagascar (color change garnet) 0.273ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 0.273ct loose

Sold out Bekily Blue Garnet from Madagascar (color change garnet) 0.262ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 0.262ct loose

Sold out Bekily Blue Garnet (Bekily Green Garnet) from Madagascar 0.248ct loose

Bekily Blue Garnet (Bekily Green Garnet) from Madagascar 0.248ct loose

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） 0.229ctルース

Russian demantoid garnet (horsetail recognized) 3.7mm/0.229ct 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