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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：ホワイトラブラドライト）

Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for intermediate users: white labradorite) Sale price¥3,980
1 Ruby from Greenland (round cut, 1.2mm)《Discount available for multiple purchases》

1 Ruby from Greenland (round cut, 1.2mm)《Discount available for multiple purchases》 Sale price¥2,280
Indian Andesine Labradorite (hexagonal cut, 3 x 5mm) 1 stone (discount available for multiple purchases)

Indian Andesine Labradorite (hexagonal cut, 3 x 5mm) 1 stone (discount available for multiple purchases) Sale price¥2,980
Limited to 23 stones: Labradorite & Andesine Labradorite 2-stone set (Hexagonal cut, 3mm) Multiple purchase discounts available

Limited to 23 stones: Labradorite & Andesine Labradorite 2-stone set (Hexagonal cut, 3mm) Multiple purchase discounts available Sale price¥2,980
ブラジル産ルチルレイテッドクォーツ1石ルース（6mm）《複数購入割引有》

Brazilian rutilated quartz (rutilated quartz) 1 loose stone (6mm) {Multiple purchase discounts available} Sale price¥1,500
Brazilian rutilated quartz (rutile/rutile quartz (rutilated quartz)) 1 loose stone (6.0-6.5mm, for beginners) {Multiple purchase discounts available}

Brazilian rutilated quartz (rutile/rutile quartz (rutilated quartz)) 1 loose stone (6.0-6.5mm, for beginners) {Multiple purchase discounts available} Sale price¥2,580
ルチルクォーツ1石ルース（12mm）《複数購入割引有》

Rutilated quartz 1 stone loose (12mm)《Multiple purchase discount available》 Sale price¥1,980
《Hong Kong Sourcing – Limited 24 Stones》Vivid Pakistan Lazulite Loose Stone 《Multiple Purchase Discount Available》

《Hong Kong Sourcing – Limited 24 Stones》Vivid Pakistan Lazulite Loose Stone 《Multiple Purchase Discount Available》 Sale price¥5,980
January birthstone rhodolite garnet rough stone and loose stone set of 2 (from Zambia) {Multiple purchase discounts available} {For beginners}

January birthstone rhodolite garnet rough stone and loose stone set of 2 (from Zambia) {Multiple purchase discounts available} {For beginners} Sale price¥2,980
ラブラドライト1石ルース（12×16mm）《複数購入割引有》

Labradorite 1 stone loose (12 x 16mm)《Multiple purchase discount available》 Sale price¥2,580
【9/22 22時販売】《限定10石》通常59,800円の甲州貴石切子plusthree「昴」ファイアオパールや29,800円のKEN氏コントラルスオパールのメキシコ産オパールガチャ1石（北海道産ロードクロサイト1石付き）《複数購入割引有》

【9/22 22時販売】《限定10石》通常59,800円の甲州貴石切子plusthree「昴」ファイアオパールや29,800円のKEN氏コントラルスオパールのメキシコ産オパールガチャ1石（北海道産ロードクロサイト1石付き）《複数購入割引有》 Sale price¥6,980
《Limited to 12 Stones》Madagascar Andesine-Labradorite (Rainbow Moonstone & Blue Moonstone) 2-Stone Set (Average 0.60ct)《Multiple Purchase Discount Available》

《Limited to 12 Stones》Madagascar Andesine-Labradorite (Rainbow Moonstone & Blue Moonstone) 2-Stone Set (Average 0.60ct)《Multiple Purchase Discount Available》 Sale price¥3,980
Limited to 11 stones: Brazilian rhodonite in quartz (cabochon, 7.5-8.5mm) 1 loose stone. Discounts available for multiple purchases.

Limited to 11 stones: Brazilian rhodonite in quartz (cabochon, 7.5-8.5mm) 1 loose stone. Discounts available for multiple purchases. Sale price¥2,980
[Available 10/2 at 10 PM] 《Limited to 16 stones》 Indian Andesine-Labradorite Gacha Loose Stone, Ojiki-cut (Avg. 1.3ct) 《Multi-purchase discounts available》

[Available 10/2 at 10 PM] 《Limited to 16 stones》 Indian Andesine-Labradorite Gacha Loose Stone, Ojiki-cut (Avg. 1.3ct) 《Multi-purchase discounts available》 Sale price¥2,580
[On sale July 10 at 10 PM] Limited 8 stones: Sweet Home Mine rhodochrosite single loose stone (average 0.1 ct) [Multiple purchase discount available]

[On sale July 10 at 10 PM] Limited 8 stones: Sweet Home Mine rhodochrosite single loose stone (average 0.1 ct) [Multiple purchase discount available] Sale price¥2,980
Limited quantity: 1 impregnated ruby ​​loose (4mm, round cut, identification instructions included) Multiple purchase discounts available

Limited quantity: 1 impregnated ruby ​​loose (4mm, round cut, identification instructions included) Multiple purchase discounts available Sale price¥1,980
[Available 9/19 at 10 PM] &lt;9 sets only&gt; Rainbow Garnet rough &amp; loose stone set from Tenkawa, Nara (includes one hexagonal pyrite) <multi-buy discount available></multi-buy>

[Available 9/19 at 10 PM] <9 sets only> Rainbow Garnet rough & loose stone set from Tenkawa, Nara (includes one hexagonal pyrite) Sale price¥6,980
Limited to 18 Stones: 3mm Rhodolite Garnet from Sri Lanka, 1 stone loose. Discounts for multiple purchases.

Limited to 18 Stones: 3mm Rhodolite Garnet from Sri Lanka, 1 stone loose. Discounts for multiple purchases. Sale price¥2,980
Limited to 7 stones: 1 Tanzanian rhodolite garnet loose stone (polished by American polisher KEN) Multiple purchase discounts available

Limited to 7 stones: 1 Tanzanian rhodolite garnet loose stone (polished by American polisher KEN) Multiple purchase discounts available Sale price¥3,980
【Available 8/ 10 PM】《Limited to 11 stones》 Madagascar Andesine Labradorite (Rainbow Moonstone) 《Multiple purchase discount available》

【Available 8/ 10 PM】《Limited to 11 stones》 Madagascar Andesine Labradorite (Rainbow Moonstone) 《Multiple purchase discount available》 Sale price¥1,580
[On sale May 10th, 10 PM JST] 6 Limited Pieces - Brazilian Mica in Rose Quartz (One stone), Multiple Purchase Discount Available

[On sale May 10th, 10 PM JST] 6 Limited Pieces - Brazilian Mica in Rose Quartz (One stone), Multiple Purchase Discount Available Sale price¥2,980
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. Sale price¥2,980
《Only 1 left》Labradorite loose stone (20x15mm, for beginners) 《Multi-buy discount available》

《Only 1 left》Labradorite loose stone (20x15mm, for beginners) 《Multi-buy discount available》 Sale price¥3,980
Limited to 5 stones: 1 Brazilian Rhodonite in Quartz (faceted cut) (Multiple purchase discounts available)

Limited to 5 stones: 1 Brazilian Rhodonite in Quartz (faceted cut) (Multiple purchase discounts available) Sale price¥4,980
ラブラドライト1石（球体,6mm）ルース

Labradorite 1 stone (spherical, 6mm) loose (multiple purchase discount available) Sale price¥2,980
【12562858掲載】ベトナム産ルビー 1.758ctルース

1.758 ct Ruby Loose Stone from Vietnam with Identification Report Sale price¥49,800
Mozambique Ruby 0.544ct Loose Stone with Certificate of Authenticity

Mozambique Ruby 0.544ct Loose Stone with Certificate of Authenticity Sale price¥39,800
ブラジル産ルチルクォーツ（ルチルレイテッドクォーツ）12mm/7.140ctルース

Brazilian rutilated quartz (rutile quartz) 12mm/7.140ct loose stone Sale price¥8,800
ブラジル産ルチルクォーツ（ルチルレイテッドクォーツ） 12mm/6.709ctルース

Brazilian rutilated quartz (rutile quartz) 12mm/6.709ct loose stone Sale price¥8,800
アフガニスタン産ラズライト（天藍石） 0.123ctルース

Pakistani Lazurite (Azurite) 0.123ct loose stone Sale price¥45,800
ビルマ産ルビー 0.418ルース

Burmese Ruby 0.418ct Loose Stone Japan-Germany Sale price¥29,800
ルビー 0.283ルース

Myanmar Ruby 0.283ct Loose Sale price¥25,800
ブラジル産ルベライト 3.844ctルース

Brazilian Rubellite (Red Tourmaline) 3.844ct Loose Stone Sale price¥128,000
Rhodochrosite from South Africa 4.2mm/0.409ct loose

Rhodochrosite from South Africa 4.2mm/0.409ct loose Sale price¥39,800
ルベライト 1.706ctルース

Mozambique Rubellite 1.706ct Loose Stone Sale price¥39,800
ロードライトガーネット 10.608ctルース

Tanzanian Rhodolite Garnet 10.608ct Loose Stone Sale price¥79,800
ブラジル産ラズライト（天藍石） 0.071ctルース

Brazilian Lazurite (Azurite) 0.071ct loose stone Sale price¥22,800
モザンビーク産ルベライト 1.141ctルース

Mozambican Rubellite 1.141ct Loose Gemstone Sale price¥29,800
【10/28 22時販売】【カラフリ】K18 ルチルクォーツ（ルチルレイテッドクォーツ）4.48ct エメラルド0.19ct リング 鑑別書

【10/28 22時販売】【カラフリ】K18 ルチルクォーツ（ルチルレイテッドクォーツ）4.48ct エメラルド0.19ct リング 鑑別書 Sale price¥128,000
ルビー 0.185ctルース

[Available 10/18 at 10 PM] Ruby 0.185ct Loose Stone with Appraisal Report Sale price¥12,800
ルビー 0.552ctルース

[Item 12565148] Ruby 0.552ct Loose Stone Sale price¥14,800
K18 ルビー 合計0.06ct ダイヤモンド 合計0.08ct ピアス 鑑別書

[Item 22602846] K18 Ruby 0.03/0.03ct & Diamond 0.04/0.04ct Earrings with Appraisal Report Sale price¥39,800
K18WG ルビー0.34ct・ ダイヤモンド0.02ctリング鑑別書

[Ref: 22602726] [Colorful] K18WG Ruby & 0.02ct Diamond Ring with Appraisal Report Sale price¥98,000
Pt900 ルベライト1.308ct・ダイヤモンド0.54ctリング 鑑別書

[Posted on 22602707] [Colorful] Pt900 Rubellite 1.308ct Ring Sale price¥158,000
ドミニカ共和国産ラリマー 3.420ctルース (ローズカット)

[Item 12564461] Dominican Republic Larimar 3.420ct Loose Gemstone Sale price¥12,800
合成ルビー 1.803ctルース

[Available 10/4, 10 PM] Synthetic Ruby 1.803ct Loose Gemstone Sale price¥18,800
合成ルビー 1.182ctルース

[10/4, 10:00 PM Sale] Synthetic Ruby 1.182ct Loose Stone Sale price¥12,800
タンザニア産ロードライトガーネット 0.510ctルース

[Available 10/5 at 10:00 PM] Tanzanian Rhodolite Garnet 0.510ct Loose Stone Sale price¥9,800

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.