La line

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 Sale price¥3,980

《Limited to 5 Stones》Andesine-Labradorite from Balangoda, Sri Lanka (Rainbow Moonstone) (Pear Shape Buff-Top Cut, 5.0×3.0mm) 1 Stone Loose 《Multiple Purchase Discount Available》 Sale price¥5,980

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} Sale price¥3,980

Labradorite 1 stone (spherical, 6mm) loose (multiple purchase discount available) Sale price¥2,980

[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

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 Sale price¥39,800

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） 1.911ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 1.911ct loose stone Sale price¥39,800

Brazilian rhodonite 1.423ct loose stone Sale price¥29,800

[On sale August 2nd at 10 PM JST] Sweet Home Mine Rhodochrosite 0.100ct Loose Gemstone with Certificate Sale price¥8,800

Pt900 ビルマ産ルビー 1.07ct・ダイヤモンド0.32ctリング GIA

[22602674 Listed] [Karafuri] Pt900 Burma Ruby 1.07ct Ring Sale price¥258,000

[On sale at 10 PM on August 6] [Karafuri] Pt850 Ruby 0.85ct, Diamond 0.09ct Ring with Appraisal Certificate Sale price¥79,800

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） 3.219ctルース

Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture, 3.219ct Loose Stone Sale price¥24,800

[Karafuru] Pt900 Ruby 0.69ct, Diamond 0.16ct Ring with Appraisal Report Sale price¥188,000

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） 0.240ctルース

Nara Prefecture, Tenkawa Village Rainbow Garnet (Andradite Garnet) 3.5mm/0.240ct Loose Sale price¥8,800

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） 0.336ctルース

Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture, 3.8mm/0.336ct Loose Stone Sale price¥9,800

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） 3.9mm/0.378ctルース（ローズカット）

Andradite Garnet (Rainbow Garnet) from Tenkawa Village, Nara Prefecture, 3.9mm/0.378ct loose stone (rose cut) Sale price¥9,800

[On sale 8/14 at 10 PM] US Sweet Home Mine Rhodochrosite 0.179ct Loose Stone with Certificate Sale price¥14,800

[On sale August 11th, 10 PM] Sweet Home Mine Rhodochrosite 0.104ct Loose Stone with Certificate Sale price¥8,800

[Published on 12563087] Unheated Ruby 0.216ct Loose Stone Sale price¥59,800

Brazilian rose quartz 8.7mm/2.536ct loose stone Sale price¥11,800

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） 0.650ctルース

Rainbow Garnet (Andradite Garnet) 0.650ct Loose Stone from Tenkawa Village, Nara Prefecture Sale price¥16,800

[Listed as 22602651] [Colorful] K9 Ruby Pendant Top (Necklace Top) Sale price¥19,800

[Published 12562264] Brazilian Lazulite 0.048ct Loose Sale price¥36,800

0.416ct Loose Mozambique Ruby with Gemstone Identification Report Sale price¥29,800

[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

Brazilian rutilated quartz (rutilated quartz) 8.1mm/1.482ct loose stone Sale price¥8,800

Brazilian rutilated quartz (rutilated quartz) 8.2mm/2.090ct loose stone Sale price¥8,800

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

Tanzanian Rhodolite Garnet 0.810ct Loose Stone Sale price¥9,800

Brazilian Lazulite 0.067ct Loose Gemstone with Certificate Sale price¥49,800

Brazilian Lazulite 0.061ct Loose Gemstone with Certificate Sale price¥45,800

Unheated Ruby, 0.207 ct, Loose Stone, Hōki Kyō Sale price¥69,800

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） 0.582ctルース

0.582ct Loose Andesine-Labradorite from Madagascar (Common Name: Rainbow Moonstone)

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

1.440 ct loose andesine-labradorite (commonly known as rainbow moonstone) from Madagascar 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

【Qalafuri】K18 White South Sea Pearl, 0.17ct Diamond, Ruby, Sapphire, Emerald Bird Motif Pendant Top with Appraisal Sale price¥198,000

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

0.807ct Loose Andesine-Labradorite from Madagascar (Common Name: Rainbow Moonstone) 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

Madagascar Andesine-Labradorite (commonly known as Rainbow Moonstone) 0.619 ct Loose Stone Sale price¥6,980

Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases. Sale price¥2,980

Lapis Lazuli 0.874ct Loose Gemstone Sale price¥11,000

Lapis Lazuli 3.394ct Loose Stone Sale price¥13,800

American Red Beryl 0.147ct Loose Sale price¥35,800

American Red Beryl 0.132ct Loose Sale price¥33,800

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） 0.585ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.585ct loose stone Sale price¥12,800

Madagascar Labradorite 0.823ct Loose Stone Sale price¥7,980

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.