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《Limited to 2 Stones》Indian Cavansite Crystal 1 Stone (average 7.2ct) 《Bulk Purchase Discount Available》

《Limited to 2 Stones》Indian Cavansite Crystal 1 Stone (average 7.2ct) 《Bulk Purchase Discount Available》 Sale price¥4,980
【Karafuri】Pt900 Cantera Opal 7.809ct and Diamond 0.19ct Pendant Top

【Karafuri】Pt900 Cantera Opal 7.809ct and Diamond 0.19ct Pendant Top Sale price¥110,000
[Karafuri] Pt900 Diamond 1.00ct Ring

[Karafuri] Pt900 Diamond 1.00ct Ring Sale price¥98,000
[Karafuru] K18 Blood Coral 7.0mm Ring with Appraisal Report

[Karafuru] K18 Blood Coral 7.0mm Ring with Appraisal Report Sale price¥98,000
【12562020掲載】アメリカ産ダトライト 0.904ctルース

0.904ct Datolite, USA (Westfield, Manchester) Loose, with Japan-Germany certification Sale price¥29,800
エメラルド 15.219ctルース 日独鑑

Natural Emerald from Brazil, 15.219 ct, Loose Stone, Nichidoku Identification Report Sale price¥398,000
【32501879掲載】グレーダイヤモンド 0.096ctルース(VERY LIGHT GRAY, SI-1)

Gray Diamond, 2.9mm/0.096ct Loose (VERY LIGHT GRAY, SI-1) Sale price¥15,800
グレーダイヤモンド 2.8mm/0.089ctルース(LIGHT GRAY, SI-2)

Gray Diamond 2.8mm/0.089ct Loose (LIGHT GRAY, SI-2) Sale price¥16,800
カメレオンダイヤモンド 0.079ctルース(FANCY LIGHT GRAY GREEN, SI-1)

Green Diamond, Chameleon Diamond 0.079ct Loose Stone (FANCY LIGHT GRAY GREEN, SI-1) Sale price¥25,800
カメレオンダイヤモンド 0.128ctルース(FANCY LIGHT GRAY GREEN, SI-1)

[Sale on May 9, 10 PM JST] Chameleon Diamond 3.2mm/0.128ct Loose Stone (FANCY LIGHT GRAY GREEN, SI-1) Sale price¥31,800
カメレオンダイヤモンド 0.118ctルース(LIGHT GRAYISH GREENISH YELLOW, VS-2)

Chameleon Diamond 3.1mm/0.118ct Loose Stone (LIGHT GRAYISH GREENISH YELLOW, VS-2) Sale price¥22,800
【12562811掲載】メキシコ産カンテラオパール 10.379ctルース

Mexican Cantera Opal 10.379ct Loose Stone Sale price¥39,800
【12562809掲載】メキシコ産カンテラオパール 7.619ctルース

Mexican Cantera Opal 7.619 ct Loose Stone Sale price¥25,800
メキシコ産カンテラオパール 5.410ctルース

Mexican Cantera Opal 5.410 ct Loose Stone Sale price¥9,800
メキシコ産カンテラオパール 7.207ctルース

[On sale May 6th at 10 PM JST] Mexican Cantera Opal Loose Stone 7.207ct Sale price¥25,800
【12562806掲載】メキシコ産カンテラオパール 3.051ctルース

Mexican Cantera Opal 3.051ct Loose Stone Sale price¥18,800
【12562804掲載】メキシコ産カンテラオパール 1.867ctルース

Mexican Cantera Opal 1.867 ct Loose Stone Sale price¥12,800
中国・湖南省シンシャ（辰砂・シナバー） 0.935ctルース

[12562802 posted] Chinese Cinnabar (Shansha) 0.935 ct Loose Sale price¥15,800
スリランカ産トパーズキャッツアイ 3.384ctルース

[On sale May 2 at 10 PM JST] Sri Lankan Topaz Cat's Eye 3.384ct Loose Stone with Japan-Germany Gemological Report Sale price¥12,800
スリランカ産エンスタタイト 1.877ctルース

[On sale May 2nd, 10 PM JST] Sri Lankan Colorless Enstatite 1.877ct Loose Stone with Japan-Germany Gemological Report Sale price¥29,800
スリランカ産エンスタタイト 2.567ctルース

[On Sale June 13, 10 PM JST] Sri Lankan Enstatite 2.567ct Loose Stone with Japan-Germany Gemological Report Sale price¥18,800
アンデシン 18.643ctルース

[On sale May 6th at 10 PM] Tibetan Andesine 18.643ct Loose Stone, Japan/Germany certified Sale price¥98,000
オーストラリア産ブラックオパール 6.558ctルース

[Available for purchase on 5/6 at 10 PM JST] Australian Black Opal 6.558ct Loose Stone with Certification Sale price¥39,800
ドミニカ共和国産ラリマー 33.829ctルース

[On sale May 6th, 10 PM] Dominican Larimar 33.829ct Loose Stone with Japan-Germany Gemological Report Sale price¥49,800
タンザニア産スペサルティンガーネット 0.417ctルース

[Sale on May 5th at 10 PM] Tanzanian Spessartine Garnet 0.417ct Loose Gemstone Sale price¥12,800
タンザニア産スペサルティンガーネット 0.359ctルース

[On sale May 10th at 10 PM] Tanzanian Spessartine Garnet 0.359ct Loose Stone Sale price¥9,800
【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
[Sales begin April 29 (Wed) 10 PM] TV Anime "Dr. STONE" x KARATZ Jewelry Store Collaboration Mini Character Stickers

[Sales begin April 29 (Wed) 10 PM] TV Anime "Dr. STONE" x KARATZ Jewelry Store Collaboration Mini Character Stickers Sale price¥19,800
[Sales start: Wednesday, April 29, 10 PM] TV Anime "Dr. STONE" x Jewelry Store KARATZ Collaboration Mini Character Acrylic Stand

[Sales start: Wednesday, April 29, 10 PM] TV Anime "Dr. STONE" x Jewelry Store KARATZ Collaboration Mini Character Acrylic Stand Sale price¥440
[Sales start: Wednesday, April 29, 10 PM] TV Anime "Dr. STONE" x Jewelry Store KARATZ Collaboration Mini Character Acrylic Stand

[Sales start: Wednesday, April 29, 10 PM] TV Anime "Dr. STONE" x Jewelry Store KARATZ Collaboration Mini Character Acrylic Stand Sale price¥3,960
Afghanite 0.447ct loose stone from Afghanistan, Japan-Germany

Afghanite 0.447ct loose stone from Afghanistan, Japan-Germany Sale price¥5,980
【12560362掲載】ブラウンダイヤモンド 0.989ctルース

Brown Diamond 6.5mm/0.989ct Loose Stone (FANCY DARK ORANGE BROWN, SI-2) Sale price¥98,000

[Option] Laser engraving of characters and symbols Sale price¥2,000
《Limited to 13 stones, Tucson Arrivals》Kenya Bi-Color Grossular Garnet, usually ¥29,800, average 0.63ct. Tucson Arrivals 《Multiple Purchase Discount Available》

《Limited to 13 stones, Tucson Arrivals》Kenya Bi-Color Grossular Garnet, usually ¥29,800, average 0.63ct. Tucson Arrivals 《Multiple Purchase Discount Available》 Sale price¥9,800
[Calafuri] K18WG Green Quartz Pendant Top (Necklace Top)

[Calafuri] K18WG Green Quartz Pendant Top (Necklace Top) Sale price¥59,800
【22602556掲載】K18 ロッククリスタル リング

K18 Rock Crystal Ring Sale price¥42,800
【22602554掲載】K18 ペリドット リング

K18 Peridot and Diamond 0.03ct Ring Sale price¥45,800
【22602553掲載】K18 ペリドット リング

K18 Peridot and Diamond 0.03ct Ring Sale price¥45,800
K18WGクリノヒューマイト1.79ct ・ダイヤモンドペンダントトップ（ネックレストップ）

[ColorFleuri] K18WG Clinohumite 1.79ct and Diamond 0.12ct Pendant Top (Necklace Top) with Japanese and German Gemstone Report Sale price¥98,000
【カラフリ】Pt950プレーナイトペンダントトップ（ネックレストップ）

[Colorful] Pt950 Play Night Pendant Top (Necklace Top) Sale price¥69,800
Benitoite from the USA, 3.4mm/0.175ct loose

Benitoite from the USA, 3.4mm/0.175ct loose Sale price¥98,000
Ceylon Blue Sapphire (Ice Blue) 0.289ct Loose

Ceylon Blue Sapphire (Ice Blue) 0.289ct Loose Sale price¥9,800
【22602549掲載】【カラフリ】K18WG 血赤珊瑚 0.19ct ブローチ

[Colorful] K18WG Blood Coral and Diamond (0.19ct) Brooch with certificate Sale price¥398,000
【22602548掲載】【カラフリ】Pt900 ブラックオパール 0.83ct リング

[Colorful] Pt900 Black Opal 0.83ct / Diamond 0.62ct Ring with Certificate Sale price¥228,000
【22602547掲載】【カラフリ】Pt900 ブラックオパール 1.24ct リング

[Colorful] Pt900 Black Opal 1.24ct / Diamond 0.70ct Ring with Appraisal Certificate Sale price¥228,000
【22602546掲載】【カラフリ】K18WG ツァボライト 0.57ctct リング

[Calafri] K18WG Tsavorite 0.57ct Ring with Certificate Sale price¥89,800
《Limited to 12 Stones》Iolite Gacha including Konpeito-cut Golden Iolite, normally 27,800 yen (with a bonus cut by Mr. Sanje)《Multiple Purchase Discount Available》

《Limited to 12 Stones》Iolite Gacha including Konpeito-cut Golden Iolite, normally 27,800 yen (with a bonus cut by Mr. Sanje)《Multiple Purchase Discount Available》 Sale price¥3,980
《Tucson New Arrival - Limited to 8 Stones》Zambian Canary Yellow Tourmaline Average 0.47ct《Bulk Purchase Discount Available》

《Tucson New Arrival - Limited to 8 Stones》Zambian Canary Yellow Tourmaline Average 0.47ct《Bulk Purchase Discount Available》 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.