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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 ブルーサファイア 4.3mm/0.307ctルース

Blue sapphire 4.3mm/0.307ct 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

Almandine Garnet 1.192ct Loose Stone

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 メキシコ産トパーズ 1.185ctルース

Mexican Topaz 1.185ct Loose Stone
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

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 Brazilian bicolor tourmaline 3.670ct loose stone

Brazilian bicolor tourmaline 3.670ct loose stone
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 ブラウンスターサファイア1石ルース

Gem Gacha💎Brown Star Sapphire 1 Loose Stone《Multiple Purchase Discounts Available》

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

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 [Limited to 10 stones] 1 stone bicolor tourmaline from Brazil [Discount available for multiple purchases] (Rose cut, Mr. NOBU cut)

[Limited to 10 stones] 1 stone bicolor tourmaline from Brazil [Discount available for multiple purchases] (Rose cut, Mr. NOBU cut)

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 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） 10.044ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 10.044ct loose

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 Opal 1 stone (oval cut, 7 x 5mm)《Discount available for multiple purchases》

Opal 1 stone (oval cut, 7 x 5mm)《Discount available for multiple purchases》

Sold out 《Limited to 14 stones》 1 stone Andalusite from Spain (3.0-3.5mm)《Multiple purchase discount available》

《Limited to 14 stones》 1 stone Andalusite from Spain (3.0-3.5mm)《Multiple purchase discount available》

Sold out [Limited to 7 sets] October birthstone tourmaline 3 stone set (1 rough stone from Afghanistan, 2 loose 2.5mm stones)

[Limited to 7 sets] October birthstone tourmaline 3 stone set (1 rough stone from Afghanistan, 2 loose 2.5mm stones)

Sold out Scorolite 1 stone loose (6mm, concave cut)《Multiple purchase discount available》

Scorolite 1 stone loose (6mm, concave cut)《Multiple purchase discount available》
Sold out Ametrine 1 stone loose (oval cut, 6 x 8mm)《Multiple purchase discount available》

Ametrine 1 stone loose (oval cut, 6 x 8mm)《Multiple purchase discount available》

Sold out ネオンブルーアパタイト1石（6×4,オーバル,特徴的なインクルージョン）

1 neon blue apatite stone (6×4, oval, distinctive inclusions)《Multiple purchase discount available》

Sold out ペツォッタイト原石 1石（ラズベリル）

Pezzotite rough stone from Madagascar 1 stone (raspberyl)《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.

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