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グリーントルマリン 9.495ctルース

Brazilian Green Tourmaline 9.495ct Loose Sale price¥128,000
バイカラーベニトアイト 0.601ctルース 日独鑑

Bicolor Benitoite 0.601ct Loose Japanese-German Edition Sale price¥458,000
タンザニア産ピンクゾイサイト 5.8mm/0.848ctルース

Tanzania Pink Zoisite 5.8mm/0.848ct ​​Loose Stone Sale price¥198,000
グランディディエライト 0.521ctルース

Madagascar Grandidierite 0.521ct loose stone Sale price¥128,000
オーストラリア産ブラックオパール 9.709ctルース

Australian black opal 9.709ct loose stone Sale price¥158,000
ルベライト 3.845ctルース

Brazilian Rubellite 3.845ct loose stone Sale price¥198,000
インド産レインボークォーツ（イリデッセンスクォーツ） 0.940ctルース

Indian Rainbow Quartz (Iridescent Quartz) 0.940ct Loose Stone Sale price¥158,000
ブラジル産パライバトルマリン 0.620ctルース（CuO：2.72%,MnO：4.93%）GIA&中宝分析

Brazilian Paraiba Tourmaline 0.620ct loose stone (CuO: 2.72%, MnO: 4.93%) GIA & Chuho analysis Sale price¥1,580,000
ブラジル産パライバトルマリン 0.230ctルース GIA（CuO:0.9%、MnO:1.1%)

Brazilian Paraiba Tourmaline 0.230ct Loose GIA (CuO: 0.9%, MnO: 1.1%) Sale price¥158,000
Benitoite 13 stone half eternity ring set (1.8mm, gradient set)

Benitoite 13 stone half eternity ring set (1.8mm, gradient set) Sale price¥158,000
K18 Indian Iolite Sunstone 0.73ct Tanzanite Ring

K18 Indian Iolite Sunstone 0.73ct Tanzanite Ring Sale price¥188,000
ブラジル産非加熱バイカラーパライバトルマリン 0.178ctルース

Brazilian unheated bicolor Paraiba tourmaline 0.178ct loose stone (CuO: 0.9%, MnO: 2.8%) Sale price¥298,000
ナミビア産ジェレメジェバイト 0.405ctルース

Namibian Jeremejevite 0.405ct loose stone Sale price¥128,000
ナミビア産ジェレメジェバイト 0.394ctルース

Namibian Jeremejevite 0.394ct loose stone Sale price¥128,000
【12549646掲載】キャシテライト 1.658ctルース

Cassiterite 1.658ct loose stone (bicolor cassiterite) Japan-Germany exchange Sale price¥128,000
マンガノタンタライト 0.736ctルース

Manganotantalite 0.736ct loose stone from Japan and Germany Sale price¥158,000
K18PGブラジル産パライバトルマリン0.286ct・グランディディエライトリング GIA

K18PG Brazilian Paraiba Tourmaline 0.286ct Grandidierite Ring GIA Sale price¥198,000
Pt950南洋真珠9.586ct・アレキサンドライト・コーネルピン・ダイヤモンドリング

Pt950 South Sea pearl 9.586ct, alexandrite, kornerupine, diamond ring Sale price¥198,000
K18YG南洋真珠10.616ct・ベキリーブルーガーネット・アレキサンドライト・ダイヤモンドリング

K18YG South Sea pearl 10.616ct, Bekiri blue garnet, alexandrite and diamond ring Sale price¥198,000
コロンビア産パイライトインエメラルド 13.691ctルース

Colombian pyrite emerald 13.691ct loose stone Sale price¥398,000
ブラジル産グリーントルマリン 26.071ctルース（シュガーローフカット）

Brazilian Green Tourmaline 26.071ct Loose Stone (Sugarloaf Cut) Sale price¥298,000
ブラジル産バイカラートルマリン 6.928ctルース（バイカラーブルートルマリン）

Brazilian bicolor tourmaline 6.928ct loose stone (bicolor blue tourmaline) Sale price¥298,000
グリーンフローライト 38.074ctルース

Green Fluorite 38.074ct Loose Sale price¥158,000
南アフリカ産ロードクロサイト 0.990ctルース 日独鑑

South African Rhodochrosite 0.990ct Loose Stone by Nikkei Sale price¥128,000
ブラジル産パーティカラーパライバトルマリン 0.490ctルース GIA

Brazilian Particolor Paraiba Tourmaline 0.490ct Loose (Bicolor Paraiba Tourmaline) GIA Sale price¥398,000
アメリカ産ベニトアイト 4.8mm/0.396ctルース 日独鑑

American Benitoite 4.8mm/0.396ct Loose Stone by Nikkei Sale price¥298,000
バイカラーベニトアイト 0.358ctルース

American Bicolor Benitoite 0.358ct Loose Stone by Nikkei Sale price¥298,000
Paraiba tourmaline, pink sapphire, opal, pink spinel 13 stone half eternity ring set (2.0mm)

Paraiba tourmaline, pink sapphire, opal, pink spinel 13 stone half eternity ring set (2.0mm) Sale price¥118,000
ブラジル産グリーントルマリン 12.252ctルース

Brazilian Green Tourmaline 12.252ct Loose Stone Sale price¥398,000
コロンビア産パイライトインエメラルド 6.415ctルース

Colombian pyrite in emerald 6.415ct loose stone Sale price¥298,000
コロンビア産ノンオイルエメラルド 0.290ctルース GIA

Colombian oil-free emerald 0.290ct loose stone GIA Sale price¥198,000
ブラジル産パライバトルマリン 0.233ctルース（CuO:1.6％.MnO:2.4％）

Brazilian Paraiba Tourmaline 0.233ct loose stone (CuO: 1.6%. MnO: 2.4%) Sale price¥358,000
スリランカ産クリソベリルキャッツアイ 5.176ctルース

Chrysoberyl cat's eye from Sri Lanka 5.176ct loose Sale price¥198,000
[Made to order] "Rhino Ring" by special modeling artist Masatoshi Asami {Exhibited at Ueno Marui}

[Made to order] "Rhino Ring" by special modeling artist Masatoshi Asami {Exhibited at Ueno Marui} Sale price¥158,000
Sold out セボンスター-×KARATZコラボ　ペンダント　プレシャスモデル

[Ametalk! Appearance Commemoration | 4 Days Only | July 2 (Thu) 10:00 PM~] Adult Cbonstar Vol. 1 Pendant Precious Model (Pt950, K18YG, K18PG)

Sold out Initial D × KARATZ 30th Anniversary Coins (24K Gold, Pure Silver)

Initial D × KARATZ 30th Anniversary Coins (24K Gold, Pure Silver)

Sold out セボンスター-×KARATZコラボ　リング　プレシャスモデル

[Ame Talk! Appearance Commemoration | 4-Day Limited Sale | From 10 PM on July 2 (Thursday)] Adult Sebonstar Vol. 1 Ring Precious Model (Pt950, K18YG, K18PG)

Sold out [Sales end on Thursday, April 30th] Anime "Overlord" x KARATZ Jewelry Store Collaboration Ring of Ainz Ooal Gown (Limited Quantity)

[Sales end on Thursday, April 30th] Anime "Overlord" x KARATZ Jewelry Store Collaboration Ring of Ainz Ooal Gown (Limited Quantity)

Sold out [Final Orders Accepted - On Sale November 21st (Fri) at 10 PM] Limited to 30 Coins: "PSYCHO-PASS: PROVIDENCE" x KARATZ Collaboration Pure Gold (24K) Coin

[Final Orders Accepted - On Sale November 21st (Fri) at 10 PM] Limited to 30 Coins: "PSYCHO-PASS: PROVIDENCE" x KARATZ Collaboration Pure Gold (24K) Coin

Sold out [Sales End on Sunday, February 15th] TV Anime "Tokyo Ghoul" x KARATZ Collaboration CCG Quinque Pendant

[Sales End on Sunday, February 15th] TV Anime "Tokyo Ghoul" x KARATZ Collaboration CCG Quinque Pendant

Sold out [On sale Friday, March 13th at 10pm] Anime "Hell Teacher Nube" x KARATZ Collaboration Jewelry Demon Hand Pendant

[On sale Friday, March 13th at 10pm] Anime "Hell Teacher Nube" x KARATZ Collaboration Jewelry Demon Hand Pendant

Sold out SoftBank Hawks 20th Anniversary "Pure Gold Oban" (10g)

SoftBank Hawks 20th Anniversary "Pure Gold Oban" (10g)

Sold out [Final Orders Accepted - On Sale November 21st (Fri) at 10 PM] {Limited to 30} "PSYCHO-PASS: PROVIDENCE" x KARATZ Collaboration Pure Platinum (PT999) Coin

[Final Orders Accepted - On Sale November 21st (Fri) at 10 PM] {Limited to 30} "PSYCHO-PASS: PROVIDENCE" x KARATZ Collaboration Pure Platinum (PT999) Coin

Sold out [Sales End April 30th (Thu)] Anime "Overlord" x KARATZ Jewelry Store Collaboration Albedo [Bardiche] Figurine 《Limited Quantity》

[Sales End April 30th (Thu)] Anime "Overlord" x KARATZ Jewelry Store Collaboration Albedo [Bardiche] Figurine 《Limited Quantity》

Sold out [Sales end May 10th (Sunday)] Assassination Classroom x KARATZ collaboration Koro-sensei Five Great Gems Figure 《Limited to 100 units》

[Sales end May 10th (Sunday)] Assassination Classroom x KARATZ collaboration Koro-sensei Five Great Gems Figure 《Limited to 100 units》

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.