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【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 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
《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
Ceylon Blue Sapphire (Ice Blue) 0.289ct Loose

Ceylon Blue Sapphire (Ice Blue) 0.289ct Loose Sale price¥9,800
《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
《New Arrivals from Tucson・Limited to 9 Stones》Canary Yellow Tourmaline from Zambia, average 0.18ct《Multi-purchase discount available》

《New Arrivals from Tucson・Limited to 9 Stones》Canary Yellow Tourmaline from Zambia, average 0.18ct《Multi-purchase discount available》 Sale price¥3,980
Sri Lankan Unheated Star Sapphire 0.238ct Loose

Sri Lankan Unheated Star Sapphire 0.238ct Loose Sale price¥3,980
0.354ct Unheated Star Sapphire Loose Stone from Sri Lanka

0.354ct Unheated Star Sapphire Loose Stone from Sri Lanka Sale price¥6,980
Unheated Sri Lankan Star Sapphire 0.361ct Loose

Unheated Sri Lankan Star Sapphire 0.361ct Loose Sale price¥6,980
ブルーサファイア 0.485ctルース

Loose 0.485 ct Sri Lankan Blue Sapphire Sale price¥9,800
【12558413掲載】モルガナイト 0.460ctルース

Brazilian Morganite 0.460ct Loose Sale price¥6,980
【12557631掲載】アベンチュリンアクアマリン 0.239ctルース

Brazilian Aventurine Aquamarine 4.2mm/0.239ct Loose Stone Sale price¥8,800
【12556697掲載】ロードライトガーネット 0.609ctルース

Tanzanian Rhodolite Garnet 0.609ct Loose Gemstone Sale price¥8,800
1 stone loose quartz in oil from Pakistan《Discount available for multiple purchases》

1 stone loose quartz in oil from Pakistan《Discount available for multiple purchases》 Sale price¥1,500
【12562649掲載】ペルー産バイカラーブルーオパール 4.379ctルース

Peruvian Bicolor Blue Opal 4.379 ct Loose Gemstone Sale price¥6,980
[Sales End Date: Tuesday, June 30] TV Anime "Dr. STONE" x KARATZ Jewelry Store Collaboration: Gemologist's Logo Loupe & Strap Set (with explanation card)

[Sales End Date: Tuesday, June 30] TV Anime "Dr. STONE" x KARATZ Jewelry Store Collaboration: Gemologist's Logo Loupe & Strap Set (with explanation card) Sale price¥6,600
[Sales end on Tuesday, June 30] TV Anime "Dr. STONE" x KARATZ Jewelry Store Collaboration Mini Character Can Badge

[Sales end on Tuesday, June 30] TV Anime "Dr. STONE" x KARATZ Jewelry Store Collaboration Mini Character Can Badge Sale priceFrom ¥660
[Sales end Tuesday, June 30] TV Anime "Dr. STONE" x KARATZ Jewelry Store Collaboration Mini Character Acrylic Keychain

[Sales end Tuesday, June 30] TV Anime "Dr. STONE" x KARATZ Jewelry Store Collaboration Mini Character Acrylic Keychain Sale priceFrom ¥880
[Sales end on Tuesday, June 30] TV Anime "Dr. STONE" x Jewelry Store KARATZ Collaboration Mini Character Acrylic Stand

[Sales end on Tuesday, June 30] TV Anime "Dr. STONE" x Jewelry Store KARATZ Collaboration Mini Character Acrylic Stand Sale price¥1,320
[Sales end Tuesday, June 30] TV Anime "Dr. STONE" x Jewelry Store KARATZ Collaboration Can Badge

[Sales end Tuesday, June 30] TV Anime "Dr. STONE" x Jewelry Store KARATZ Collaboration Can Badge Sale priceFrom ¥660
[Sales End on Tuesday, June 30] TV Anime "Dr.STONE" × KARATZ Jewelry Store Collaboration Acrylic Keychain

[Sales End on Tuesday, June 30] TV Anime "Dr.STONE" × KARATZ Jewelry Store Collaboration Acrylic Keychain Sale priceFrom ¥880
[Sales end on Tuesday, June 30] TV Anime "Dr. STONE" x KARATZ Jewelry Store Collaboration Acrylic Stand

[Sales end on Tuesday, June 30] TV Anime "Dr. STONE" x KARATZ Jewelry Store Collaboration Acrylic Stand Sale price¥1,760
インド産アイオライトサンストーン 0.472ctルース

Iolite Sunstone from India 0.472ct Loose Gemstone Sale price¥5,980
《Limited to 11 stones》Koshu Kiseki Kiriko plusthree Peridot (including lilypad) & Monsieur Saint-Jude cut peridot gacha《Multiple purchase discount available》

《Limited to 11 stones》Koshu Kiseki Kiriko plusthree Peridot (including lilypad) & Monsieur Saint-Jude cut peridot gacha《Multiple purchase discount available》 Sale price¥4,980
《Newly Arrived from Tucson・Limited to 15 Stones》Australian Black Opal Rough Stone (Lightning Ridge) 《Bulk Purchase Discount Available》

《Newly Arrived from Tucson・Limited to 15 Stones》Australian Black Opal Rough Stone (Lightning Ridge) 《Bulk Purchase Discount Available》 Sale price¥6,980
New Arrival from Tucson - Limited to 8 Stones: 1 Loose Australian Black Opal (Lightning Ridge Origin) - Multi-Purchase Discount Available

New Arrival from Tucson - Limited to 8 Stones: 1 Loose Australian Black Opal (Lightning Ridge Origin) - Multi-Purchase Discount Available Sale price¥5,980
デュモルチェライトインクォーツ 0.387ctルース

Brazilian Dumortierite in Quartz 0.387ct loose stone Sale price¥3,980
【12562516掲載】スリランカ産非加熱スターサファイア 0.499ctルース

Unheated Sri Lankan star sapphire 3.9mm/0.499ct loose gemstone Sale price¥8,800
スリランカ産非加熱スターサファイア 0.523ctルース

【Sales start at 10 PM on May 6th】Unheated Sri Lankan Star Sapphire 0.523ct Loose Stone Sale price¥9,800
スリランカ産非加熱スターサファイア 0.618ctルース

[Sales start 10 PM, May 6] Unheated Sri Lankan Star Sapphire 0.618ct Loose Stone Sale price¥9,800
スリランカ産非加熱スターサファイア 0.710ctルース

[On sale May 10, 10 PM JST] Unheated Sri Lankan Star Sapphire 0.710ct Loose Stone Sale price¥8,800
スリランカ産非加熱スターサファイア 0.737ctルース

[On sale May 11, 10 PM JST] Unheated Sri Lankan Star Sapphire 0.737ct Loose Stone Sale price¥9,800
ブラジル産グリーントルマリン 0.596ctルース

Untreated green tourmaline from Brazil, 0.596 ct, loose Sale price¥9,800
【12552988掲載】タンザニア産イエローサファイア 0.281ctルース

0.281ct Tanzanian Yellow Sapphire Loose Gemstone Sale price¥6,980
ナミビア産ヘミモルファイト 0.697ctルース

Namibian Hemimorphite 0.697ct Loose Stone Sale price¥7,980
Gem Gacha💎 Custom cut spinel《August birthstone》《Multiple purchase discounts available》

Gem Gacha💎 Custom cut spinel《August birthstone》《Multiple purchase discounts available》 Sale price¥3,980
Zambian Canary Yellow Tourmaline (4.0mm/Round Cut) Loose Stone - Limited 5 Pieces (Multiple Purchase Discount Available)

Zambian Canary Yellow Tourmaline (4.0mm/Round Cut) Loose Stone - Limited 5 Pieces (Multiple Purchase Discount Available) Sale price¥6,980
《Limited to 10 stones》Plumeria cut carving (Peridot, Blue Topaz, Citrine, Rose Quartz) 1 stone 《Bulk purchase discount available》

《Limited to 10 stones》Plumeria cut carving (Peridot, Blue Topaz, Citrine, Rose Quartz) 1 stone 《Bulk purchase discount available》 Sale price¥1,980
Limited to 20 Pieces: Spanish Sphalerite Loose Stone (Average 0.50ct) - Volume Discount Available

Limited to 20 Pieces: Spanish Sphalerite Loose Stone (Average 0.50ct) - Volume Discount Available Sale price¥2,580
ナミビア産ヘミモルファイト 0.615ctルース

Namibian Hemimorphite 0.615ct Loose Stone Sale price¥7,980
Nepalese bicolor kyanite 0.987ct loose stone

Nepalese bicolor kyanite 0.987ct loose stone Sale price¥9,800
Nepalese Bicolor Kyanite 6.3mm/0.903ct Loose Stone

Nepalese Bicolor Kyanite 6.3mm/0.903ct Loose Stone Sale price¥9,800
グリーントルマリン 0.621ctルース

Green tourmaline 0.621ct loose stone Sale price¥9,800
グリーントルマリン 0.457ctルース

Green tourmaline 0.457ct loose stone Sale price¥8,800
ジンバブエ産ブルーアパタイト（UVタイプ） 0.539ctルース

Zimbabwean Blue Apatite (UV Type) 0.539ct Loose Sale price¥8,800
ジンバブエ産ブルーアパタイト（UVタイプ） 0.703ctルース

Zimbabwean Blue Apatite (UV type) 0.703ct 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.