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[On sale June 21st at 10 PM] Ruby Gacha (with synthetic ruby as a bonus) including two pigeon blood rubies with appraisal certificates (limited to 15 stones) - Multiple purchase discount available

[On sale June 21st at 10 PM] Ruby Gacha (with synthetic ruby as a bonus) including two pigeon blood rubies with appraisal certificates (limited to 15 stones) - Multiple purchase discount available Sale price¥5,980
[On sale July 4th at 10 PM] "Hong Kong Procurement - Limited to 24 Stones" Vibrant Lazurite Loose Stones from Pakistan "Bulk Purchase Discount Available"

[On sale July 4th at 10 PM] "Hong Kong Procurement - Limited to 24 Stones" Vibrant Lazurite Loose Stones from Pakistan "Bulk Purchase Discount Available" Sale price¥5,980
[Sales begin 6/20 10 PM] Limited to 12 Stones: Madagascar Andesine & Labradorite (Rainbow Moonstone & Blue Moonstone) 2-Stone Set (Average 0.60ct) - Multiple Purchase Discount Available

[Sales begin 6/20 10 PM] 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
[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¥3,980
K9 ルビー・ダイヤモンドペンダントトップ（ネックレストップ） 鑑別書

[Listed as 22602651] [Colorful] K9 Ruby Pendant Top (Necklace Top) Sale price¥19,800
ブラジル産ラズライト（天藍石） 0.048ctルース

[Published 12562264] Brazilian Lazulite 0.048ct Loose Sale price¥36,800
モザンビーク産ルビー 0.416ctルース

[On sale July 4, 10 PM] 0.416 ct Loose Mozambique Ruby with Certificate Sale price¥29,800
[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
Pt900 ルビー 0.60ct・ダイヤモンド0.24ctリング 鑑別書

[Listed on 22602645] [Colorful] Pt900 Ruby 0.6ct Ring Sale price¥98,000
K18WG ルビー 0.94ct・ダイヤモンド0.66ctペンダントトップ（ネックレストップ）　 鑑別書

[Published on 22602611] [Carafur] K18WG Ruby 0.94ct Pendant Top (Necklace Top) Sale price¥158,000
ブラジル産ルチルレイテッドクォーツ 1.406ctルース

Brazilian rutilated quartz (rutilated quartz) 7.8mm/1.406ct loose stone Sale price¥8,800
ブラジル産ルチルレイテッドクォーツ 1.482ctルース

Brazilian rutilated quartz (rutilated quartz) 8.1mm/1.482ct loose stone Sale price¥8,800
ブラジル産ルチルレイテッドクォーツ 2.090ctルース

Brazilian rutilated quartz (rutilated quartz) 8.2mm/2.090ct loose stone Sale price¥8,800
ロードライトガーネット 0.448ctルース

Tanzanian Rhodolite Garnet 0.448ct Loose Stone Sale price¥6,980
Tanzanian Rhodolite Garnet 0.810ct Loose Stone

Tanzanian Rhodolite Garnet 0.810ct Loose Stone Sale price¥9,800
ブラジル産ラズライト（天藍石） 0.022ctルース

[On sale June 27th, 10 PM JST] Brazilian Lazulite 0.022ct Loose Stone with Certificate Sale price¥18,800
ブラジル産ラズライト（天藍石） 0.067ctルース

[Sale on 6/27 at 10 PM] Brazilian Lazulite (Lazulite) 0.067ct Loose Stone with Certificate Sale price¥49,800
ブラジル産ラズライト（天藍石） 0.061ctルース

[Sales start June 30th at 10 PM] Brazilian Lazulite 0.061ct Loose Stone with Gemstone Identification Report Sale price¥45,800
非加熱ルビー 0.207ctルース

[On sale June 23 at 10 PM] Untreated Ruby 0.207ct Loose Stone (Houseki Kyo certificate) Sale price¥69,800
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） 0.582ctルース

[On sale June 21st at 10 PM] Madagascar Andesine-Labradorite (commonly known as Rainbow Moonstone) 0.582ct Loose Stone Sale price¥6,980
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） 1.440ctルース

[On sale June 21, 10 PM JST] Madagascar Andesine-Labradorite (commonly known as Rainbow Moonstone) 1.440ct Loose Gemstone Sale price¥25,800
K18 白蝶真珠（白蝶パール） 鳥モチーフ ペンダントトップ（ネックレストップ） 鑑別書

[Sale on 6/22 at 10 PM] Colorful K18 White South Sea Pearl, 0.17ct Diamond, Ruby, Sapphire, Emerald Bird Motif Pendant Top (Necklace Top) with Appraisal Report Sale price¥198,000
K18 ルビー 0.44ct・ダイヤモンド0.18ctリング 鑑別書

[Sale starts June 22nd, 10 PM] Colorful K18 Ruby 0.44ct & Diamond 0.18ct Ring with Appraisal Report Sale price¥148,000
Pt900/K18 ルビー 0.28ct・ダイヤモンド0.20ct リング 鑑別書

[Sale starts 10 PM, June 22] [Colorfuri] Pt900/K18 Ruby 0.28ct / Diamond 0.20ct Ring with Appraisal Report Sale price¥128,000
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） 0.807ctルース

[On sale June 26th, 10 PM JST] Madagascar Andesine-Labradorite (Common name: Rainbow Moonstone) 0.807ct Loose Sale price¥8,800
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） 0.619ctルース

[On sale June 21st at 10 PM] Madagascar Andesine-Labradorite (commonly known as Rainbow Moonstone) 0.619ct Loose Stone Sale price¥6,980
[Jeweler's Tools] 3 black light loose pieces (ruby, red spinel rough, oil-in-quartz) with rechargeable battery

[Jeweler's Tools] 3 black light loose pieces (ruby, red spinel rough, oil-in-quartz) with rechargeable battery Sale price¥6,980
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
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
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
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
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
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
《New Tucson Arrivals・Limited to 13 Stones》Pakistani Lazurite (Azure Stone) Loose Stone《Multiple Purchase Discount Available》

《New Tucson Arrivals・Limited to 13 Stones》Pakistani Lazurite (Azure Stone) Loose Stone《Multiple Purchase Discount Available》 Sale price¥6,980
Limited to 25 stones: One loose rhodochrosite stone (4mm cabochon cut) from Sutton Holm, USA. Discounts available for multiple purchases.

Limited to 25 stones: One loose rhodochrosite stone (4mm cabochon cut) from Sutton Holm, USA. Discounts available for multiple purchases. Sale price¥4,580
Limited to 18 stones: Mozambique ruby ​​(princess cut, 2.3-2.5mm) Multiple purchase discounts available

Limited to 18 stones: Mozambique ruby ​​(princess cut, 2.3-2.5mm) Multiple purchase discounts available Sale price¥3,980
【Sale starts 4/ at 10 PM JST】《Limited to 15 pieces》Tucson Gem Gacha 💎 Benitoite, Italian Leucite, Pakistani Lazulite, etc. 《Multi-item discount available》

【Sale starts 4/ at 10 PM JST】《Limited to 15 pieces》Tucson Gem Gacha 💎 Benitoite, Italian Leucite, Pakistani Lazulite, etc. 《Multi-item 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
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
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
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
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 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
{2 stones remaining} 1 Labradorite loose stone (20 x 15 mm, for beginners) {Multiple purchase discounts available}

{2 stones remaining} 1 Labradorite loose stone (20 x 15 mm, for beginners) {Multiple purchase discounts available} Sale price¥3,980
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

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.