Login

La line

Sort by
ミャンマー産非加熱ルビー 0.433ctルース

Unheated Ruby from Myanmar 0.433ct Ruth Japanese-German Edition Sale price¥59,800
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） 2.483ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 2.483ct loose Sale price¥22,800
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） 1.163ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 1.163ct loose Sale price¥14,800
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

Rainbow garnet (andradite garnet) 0.639ct loose from Tenkawa Village, Nara Prefecture Sale price¥7,980
ミャンマー産トラピッチェルビー 0.179ct原石

Myanmar trapichel ruby ​​0.179ct rough stone Sale price¥3,980
【12545153掲載】ミャンマー産トラピッチェルビー 0.160ct原石

Myanmar trapichel ruby ​​0.160ct rough stone Sale price¥5,980
ミャンマー産トラピッチェルビー 0.152ct原石

Myanmar trapichel ruby ​​0.152ct rough stone Sale price¥4,980
ミャンマー産トラピッチェルビー 0.202ct原石

Trapichel ruby ​​from Myanmar 0.202ct rough stone Sale price¥3,980
ミャンマー産トラピッチェルビー 0.261ct原石

Myanmar trapichel ruby ​​0.261ct rough stone Sale price¥4,980
レッドベリル 2.9mm/0.096ctルース

Red Beryl 2.9mm/0.096ct loose Sale price¥35,800
Red beryl 0.173ct loose

Red beryl 0.173ct loose Sale price¥38,800
Red beryl 0.136ct loose

Red beryl 0.136ct loose Sale price¥29,800
レッドベリル 0.131ctルース

Red beryl 0.131ct loose Sale price¥28,800
アメリカ産レッドベリル 2.9mm/0.094ctルース

American red beryl 2.9mm/0.094ct loose Sale price¥35,800
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） 2.623ctルース

Rainbow garnet (andradite garnet) 2.623ct loose from Tenkawa Village, Nara Prefecture Sale price¥3,980
【パンダカット】ローズクォーツ 5.081ctルース

[Panda cut] Rose quartz 5.081ct loose Sale price¥8,800
《有楽町202302持ち出し中》ルビー 0.194ctルース - カラッツSTORE

Ruby 0.194ct loose Sale price¥8,800
ルビー 0.472ctルース

[On sale at 10pm on September 22nd] Tanzanian Ruby 0.472ct Loose Sale price¥5,980
Sold out Let's try polishing gemstones with the "Do-it-yourself gemstone polishing kit" (for intermediate users: Andesine Labradorite from Madagascar)

Let's try polishing gemstones with the "Do-it-yourself gemstone polishing kit" (for intermediate users: Andesine Labradorite from Madagascar)

Sold out 宝石研磨に挑戦してみよう「自分で出来る原石磨きセット」（中級者向け：ラブラドライト）

Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for intermediate users: labradorite)

Sold out 北海道産ロードクロサイト1石ルース（6×4,オーバル）

1 stone loose rhodochrosite from Hokkaido (6×4, oval)

Sold out 1 stone of Hokkaido rhodochrosite (5 x 3 mm, pear-shaped cut)《Discount available for multiple purchases》

1 stone of Hokkaido rhodochrosite (5 x 3 mm, pear-shaped cut)《Discount available for multiple purchases》

Sold out 含浸ルビー・天然ルビー見分け2点セット - KARATZ STORE｜カラッツSTORE

[Jeweler's Tools] 2-piece set for distinguishing impregnated rubies and natural rubies (discount available for multiple purchases)

Sold out [On sale 10/26 at 10 PM] {3 stones left} Ruby Loose Gacha: Win a 0.59ct Pigeon Blood Ruby with AIGS or a Burmese Star Ruby {Multiple purchase discounts available}

[On sale 10/26 at 10 PM] {3 stones left} Ruby Loose Gacha: Win a 0.59ct Pigeon Blood Ruby with AIGS or a Burmese Star Ruby {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 《限定12石》ブラジル産ラズライト（天藍石）1石ルース（初心者向け）《複数購入割引有》

1 stone loose Brazilian lazurite (for beginners)

Sold out グリーンランド産ルビー 1石（ラウンドカット,2mm）

1 Ruby from Greenland (round cut, 2mm) with certificate

Sold out Rhodolite garnet (octagonal cut) 1ct 1 stone

Rhodolite garnet (octagonal cut) 1ct 1 stone

Sold out Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.

Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.
Sold out 【猫カット】ローズクォーツ（8mm） - カラッツSTORE

[Cat cut] Rose quartz (8mm)《Multiple purchase discount available》

Sold out Mini Kite Cut Loose Stone (Includes 2 Paraiba Tourmalines, Green Beryl, Ruby, Peridot, etc.) {Multiple Purchase Discounts Available}

Mini Kite Cut Loose Stone (Includes 2 Paraiba Tourmalines, Green Beryl, Ruby, Peridot, etc.) {Multiple Purchase Discounts Available}

Sold out [Limited to 8 stones] Jam Gacha💎 1 Rainbow Garnet stone (January birthstone) from Tenkawa Village, Nara Prefecture [Multiple purchase discounts available]

[Limited to 8 stones] Jam Gacha💎 1 Rainbow Garnet stone (January birthstone) from Tenkawa Village, Nara Prefecture [Multiple purchase discounts available]
Sold out Greenland Ruby Loose (approx. 2.3mm, Top Color, Certificate Included) (Multiple Purchase Discounts Available)

Greenland Ruby Loose (approx. 2.3mm, Top Color, Certificate Included) (Multiple Purchase Discounts Available)

Sold out [Available at 10 PM on September 21st] Rainbow Garnet (Rose Cut, 3.0-5.5mm) Loose Stone from Tenkawa Village, Nara Prefecture (Multiple Purchase Discounts Available)

[Available at 10 PM on September 21st] Rainbow Garnet (Rose Cut, 3.0-5.5mm) Loose Stone from Tenkawa Village, Nara Prefecture (Multiple Purchase Discounts Available)
Sold out Limited to 7 stones: 1 Hokkaido rhodochrosite loose stone (4mm, rose cut) Multiple purchase discounts available

Limited to 7 stones: 1 Hokkaido rhodochrosite loose stone (4mm, rose 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）

Ice ruby ​​from Greenland 1 stone (heart shape, 4mm) Comes with original pouch

Sold out 【カメリアカット】レモンクォーツ8mmルース 直筆サイン付&ワッペン付 - カラッツSTORE

[Camellia cut] Lemon quartz 8mm loose with autograph and emblem

Sold out ブラジル産ラズライトインクォーツ 0.283ctルース

[On Sale at 10 PM on October 29th] Brazilian Lazurite in Quartz 4.5mm/0.283ct Loose Stone
Sold out アンデシン・ラブラドライトムーンストーン（通称名 レインボームーンストーン） 0.723ctルース

Andesine Labradorite Moonstone (commonly known as Rainbow Moonstone) 0.723ct loose
Sold out ローズクォーツ 8.640ctルース

Rose quartz 8.640ct loose
Sold out ピジョンブラッドルビー 3.7mm/0.230ctルース AIGS

[10/12 22:00 Sale] Pigeon Blood Ruby 3.7mm/0.230ct Loose Stone AIGS

Sold out ブラジル産ルベライト 2.588ctルース

[10/12 22:00 Sale] Brazilian Rubellite 2.588ct Loose Stone

Sold out K18YG アンデシン・ラブラドライト（通称名 ブルームーンストーン） 0.395ct リング

18K Yellow Gold Tanzanian Andesine Labradorite (also known as Blue Moonstone) 6.0mm/0.395ct Benitoa 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） 0.577ctルース

[On Sale at 10 PM on October 18th] Rainbow Garnet (Andradite Garnet) 0.577ct Loose Stone from Tenkawa Village, Nara Prefecture
Sold out Lottery Sale ① [Reserved for Winners] [Published on 12560878] [Koshu Precious Stones Cut by plusthree] 《Cut Rose Quartz》 13.682ct Loose Stone

Lottery Sale ① [Reserved for Winners] [Published on 12560878] [Koshu Precious Stones Cut by plusthree] 《Cut Rose Quartz》 13.682ct Loose Stone

Sold out ブラジル産レインボースキャポライト 0.652ctルース

Brazilian rainbow scapolite 6mm/0.652ct loose
Sold out ノンオイルレッドベリル 0.200ctルース GIA

[On sale at 10pm on September 28th] Oil-free red beryl 0.200ct loose GIA
Sold out ルチルレイテッドクォーツ 5.870ctルース

Rutilated Quartz (Rutilated Quartz) 5.870ct 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.

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.