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Sold out American red beryl 0.160ct loose

American red beryl 0.160ct loose

Sold out ブラジル産アレキサンドライト 0.073ctルース（ヘマチタ鉱山）

Brazilian Alexandrite 0.073ct Ruth (Hemachita Mine)
Sold out スリランカ産スピネル 0.815ctルース

Sri Lankan blue spinel 0.815ct loose

Sold out ピンクトルマリン 0.687ctルース

[Mr. Sanjay] Pink tourmaline 0.687ct loose

Sold out パキスタン産オイルインクォーツ 0.356ctルース

Pakistani oil-in quartz 0.356ct loose (moving bubble type/facet cut)
Sold out Ruby from Tanzania 0.233ct Ruth Japanese German edition

Ruby from Tanzania 0.233ct Ruth Japanese German edition
Sold out マダガスカル産アンデシン・ラブラドライト（通称名 レインボームーンストーン） 0.910ctルース

Andesine Labradorite from Madagascar (commonly known as Rainbow Moonstone) 0.910ct loose
Sold out サンタマリアアクアマリン 0.223ctルース

Santa Maria Aquamarine 0.223ct loose

Sold out スリランカ産ライモナイトイントパーズ 3.424ctルース

[Mr. Sanjay] Limonite Intopaz from Sri Lanka 3.424ct loose Japanese-German edition
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 Paraiba tourmaline from Brazil 0.043ct loose

Paraiba tourmaline from Brazil 0.043ct loose

Sold out 《Limited 5 stones》 Paraiba tourmaline from Brazil (Batalha mine, 2.2 x 1.7mm) 《Multiple purchase discount available》

《Limited 5 stones》 Paraiba tourmaline from Brazil (Batalha mine, 2.2 x 1.7mm) 《Multiple purchase discount available》

Sold out デュモルチェライトインクォーツ 1.902ctルース

Brazilian dumortierite in quartz 1.902ct loose
Sold out 【サンジェ氏】アルマンディンガーネット 1.192ctルース

[Mr. Sanjay] Almandine garnet 1.192ct loose

Sold out オーストラリア産ブラックオパール 0.346ctルース

Australian black opal 0.346ct loose
Sold out マリ共和国産マリガーネット（グロッシュラー/アンドラダイト・ガーネット） 0.738ctルース

Mali garnet (grossular/andradite garnet) from the Republic of Mali 0.738ct loose/5.3mm
Sold out ダイヤモンド 0.051ctルース

Diamond 0.051ct loose (heart shape, equivalent to VS class)

Sold out オーストラリア産ブラックオパール 0.218ctルース

Australian black opal 0.218ct loose
Sold out ヴァイオレットスピネル 0.594ctルース

[Mr. Sanjay] Violet spinel 0.594ct loose

Sold out マダガスカル産アンデシン・ラブラドライト（通称名 レインボームーンストーン） 0.549ctルース

Andesine Labradorite from Madagascar (commonly known as Rainbow Moonstone) 0.549ct loose
Sold out 《Limited to 7 stones》《For beginners》1 stone Bekily Blue Garnet from Madagascar (2.6-2.8mm)《Multiple purchase discount available》

《Limited to 7 stones》《For beginners》1 stone Bekily Blue Garnet from Madagascar (2.6-2.8mm)《Multiple purchase discount available》

Sold out ブラジル産パライバトルマリン（バターリャ）1石 1.1mm - KARATZ STORE｜カラッツSTORE

Brazilian Paraiba tourmaline (Batalha) 1 stone 1.1mm《Multiple purchase discount available》

Sold out Pork stone + feldspar from Ebikawa Village, Gifu Prefecture + rhodochrosite from Hokkaido 3-stone set {Multiple purchase discounts available}

Pork stone + feldspar from Ebikawa Village, Gifu Prefecture + rhodochrosite from Hokkaido 3-stone set {Multiple purchase discounts available}
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 [For beginners in opal]《Limited to 8 sets》October birthstone opal 3 stone set (from Australia, Peru, South Africa)《Multiple purchase discount available》

[For beginners in opal]《Limited to 8 sets》October birthstone opal 3 stone set (from Australia, Peru, South Africa)《Multiple purchase discount available》

Sold out サンタマリアアクアマリン 0.228ctルース

Santa Maria Aquamarine 0.228ct loose
Sold out アイスブルーダイヤモンド 0.043ctルース（VSクラス相当）

Ice blue diamond 0.043ct loose (equivalent to VS class)

Sold out 【12522039掲載】ブルーオパール 1.096ctルース

Blue opal 1.096ct loose

Sold out ピンクトルマリン 0.362ctルース

[Mr. Sanjay] Pink tourmaline 0.362ct loose
Sold out 【12546323掲載】バイカラートルマリン 2.314ctルース

Bicolor tourmaline 2.314ct loose

Sold out 1 stone demantoid garnet loose (radiant cut) from Namibia《Discount available for multiple purchases》

1 stone demantoid garnet loose (radiant cut) from Namibia《Discount available for multiple purchases》

Sold out アウイナイト原石・ルース2石セット - カラッツSTORE

Ouinite raw stone/loose 2 stone set《Multiple purchase discount available》

Sold out Rutilated Quartz Cat's Eye Approx. 7.0-7.5mm 1 stone (Cat's Isle Chill)《Discount available for multiple purchases》

Rutilated Quartz Cat's Eye Approx. 7.0-7.5mm 1 stone (Cat's Isle Chill)《Discount available for multiple purchases》

Sold out 1 stone of Tibetan andesine and bicolor andesine (discount available for multiple purchases)

1 stone of Tibetan andesine and bicolor andesine (discount available for multiple purchases)
Sold out 【ジェムガチャ】宝石1石（ダイヤモンドH&C中宝ソ,ピンクダイヤモンド3.3mmUP,タンザニア産レッドサファイアなど）1石が当たる！さらに2個以上購入で10月誕生石「ペルー産ブルーオパール＆ブラジル産トルマリン2石セット」が必ず貰える《複数購入割引有》

【ジェムガチャ】宝石1石（ダイヤモンドH&C中宝ソ,ピンクダイヤモンド3.3mmUP,タンザニア産レッドサファイアなど）1石が当たる！さらに2個以上購入で10月誕生石「ペルー産ブルーオパール＆ブラジル産トルマリン2石セット」が必ず貰える《複数購入割引有》
Sold out トパーズ 5.060ctルース

Sri Lankan Topaz 5.060ct Loose
Sold out Russian demantoid garnet (2mm, round cut) 1 stone (discount available for multiple purchases)

Russian demantoid garnet (2mm, round cut) 1 stone (discount available for multiple purchases)

Sold out Neon blue apatite 0.746ct loose

Neon blue apatite 0.746ct loose
Sold out Hokkaido rhodochrosite 0.835ct loose

Hokkaido rhodochrosite 0.835ct loose
Sold out Let's try the gem mining experience "Do-it-yourself gem excavation experience set" + bonus of fossil stickers and simple black light (more than 8 types of gems) (discounts available for multiple purchases)

Let's try the gem mining experience "Do-it-yourself gem excavation experience set" + bonus of fossil stickers and simple black light (more than 8 types of gems) (discounts available for multiple purchases)

Sold out 1 Bekily Blue Garnet from Madagascar (2mm, round cut)《Multiple purchase discounts available》

1 Bekily Blue Garnet from Madagascar (2mm, round cut)《Multiple purchase discounts available》
Sold out グリーンランド産アイスルビー 1石（ハートシェイプ,4mm,ピンクサファイア）《複数購入割引有》

Greenland Ice Ruby 1 stone (heart shape, 4mm, pink sapphire) {Multiple purchase discount available}

Sold out Diamond gacha💎Diamond gacha (treatment) where you can win purple diamonds and ice blue diamonds (multiple purchase discount available)

Diamond gacha💎Diamond gacha (treatment) where you can win purple diamonds and ice blue diamonds (multiple purchase discount available)

Sold out ウンバサファイア（タンザニア産）1石ルース《複数購入割引有》

Umba sapphire (from Tanzania) 1 stone loose《Discount available for multiple purchases》

Sold out Gem Gacha💎Mexican Cantera Opal《Multiple Purchase Discount》

Gem Gacha💎Mexican Cantera Opal《Multiple Purchase Discount》

Sold out 【4月新誕生石】モルガナイト原石・ルース2石セット - カラッツSTORE

[April new birthstone] Morganite raw stone/loose 2 stone set《Multiple purchase discount available》

Sold out Hessonite garnet 1 stone (molasses-like, octagonal cut)《Multiple purchase discount available》

Hessonite garnet 1 stone (molasses-like, octagonal cut)《Multiple purchase discount available》

Sold out [Only one left] 1 Opal (oval cut, 7 x 5 mm) {Multiple purchase discounts available}

[Only one left] 1 Opal (oval cut, 7 x 5 mm) {Multiple purchase discounts 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.

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