【1/17 22時販売】オーストラリア産ブラックオパール 1.091ctルース
Sale price¥9,800
【1/17 22時販売】タンザニア産タンザナイト 0.680ctルース
Sale price¥15,800
Sphene from Madagascar 0.498ct loose
Sale price¥6,980
American red beryl 0.143ct loose
Sale price¥15,800
American red beryl 0.115ct loose
Sale price¥12,800
American red beryl 0.208ct loose
Sale price¥22,800
American red beryl 0.141ct loose
Sale price¥14,800
Paraiba tourmaline from Mozambique 0.270ct loose
Sale price¥18,800
Mexican Water Opal 1.790ct Loose (Contralus Opal)
Sale price¥29,800
Paraiba tourmaline from Brazil 0.066ct loose
Sale price¥18,800
Morganite from Nigeria 0.889ct loose
Sale price¥4,980
Synthetic rutile 5mm/0.553ct loose stone
Sale price¥12,800
Synthetic rutile 5.8mm/0.904ct loose stone
Sale price¥12,800
【1/14 22時販売】ジンバブエ産ユークレース 0.138ctルース
Sale price¥39,800
【1/14 22時販売】アフガニスタン産クンツァイト 23.634ctルース
Sale price¥98,000
【1/14 22時販売】ブラジル産バイカラートパーズ（バイカラーブルートパーズ） 2.884ctルース（無処理）
Sale price¥29,800
【1/14 22時販売】アメリカ産ベニトアイト 0.257ctルース
Sale price¥158,000
【1/12 22時販売】【さくらインカット】タンザニア産タンザナイト 6.0mm/0.774ctルース
Sale price¥69,800
【1/12 22時販売】ジンバブエ産バイカラーユークレース 0.654ctルース
Sale price¥158,000
【1/11 22時販売】ミャンマー産カラーチェンジジルコン 0.697ctルース
Sale price¥39,800
![[12561788] Dendritic Quartz 25.875ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1088181.jpg?v=1768172825&width=4000)
[12561788] Dendritic Quartz 25.875ct Loose Stone
Sale price¥29,800
![[12561780] Mozambique Ruby 0.481ct Loose](http://store.karatz.jp/cdn/shop/files/P1087819_20d21767-4b37-4d98-877f-e5d67479d672.jpg?v=1767939816&width=2906)
[12561780] Mozambique Ruby 0.481ct Loose
Sale price¥39,800
![[1/11 22:00 Sale] Tanzanian Violet Sapphire 0.920ct Loose](http://store.karatz.jp/cdn/shop/files/P1087805.jpg?v=1767939336&width=4000)
[1/11 22:00 Sale] Tanzanian Violet Sapphire 0.920ct Loose
Sale price¥39,800
![[On Sale at 10 PM on January 11th] Mozambique Ruby 0.544ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/P1087731_ecfd3502-7225-4f02-a1c3-b8cc7ce05d8a.jpg?v=1767939222&width=3251)
![[1/11 22:00 Sale] Brazilian Green Tourmaline 4.345ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1087723.jpg?v=1767939012&width=4000)
[1/11 22:00 Sale] Brazilian Green Tourmaline 4.345ct Loose Stone
Sale price¥69,800
![[1/11 22:00 Sale] Tanzanite from Tanzania 2.777ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1087633_8cebae4e-7fed-47ae-9d1b-584a721a6351.jpg?v=1767938707&width=2889)
[1/11 22:00 Sale] Tanzanite from Tanzania 2.777ct Loose Stone
Sale price¥98,000
Myanmar color change zircon 1.043ct loose stone
Sale price¥69,800
![[12559052] Brazilian Blue Tourmaline 0.827ct Loose](http://store.karatz.jp/cdn/shop/files/P1088505_78dc3187-5c6c-49c4-b39d-0b9af87a7a5f.jpg?v=1767992160&width=3060)
[12559052] Brazilian Blue Tourmaline 0.827ct Loose
Sale price¥19,800
![[12559002] Cambodian Blue Zircon (Ratanakiri Blue) 0.674ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1098663.jpg?v=1767992682&width=4000)
[12559002] Cambodian Blue Zircon (Ratanakiri Blue) 0.674ct Loose Stone
Sale price¥15,800
![[1/11 22:00 Sale] Brazilian Dumortierite in Quartz 0.382ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1088465_f43d3e40-29aa-4624-a2a1-c6d1634e73e3.jpg?v=1767942646&width=3570)
![[1/10 22:00 Sale] Burmese Unheated Ruby 0.227ct Loose Stone, Nikko Kan](http://store.karatz.jp/cdn/shop/files/P8214669_561f61d9-71f4-4776-872c-afa2348b90fa.jpg?v=1767739117&width=2658)
[1/10 22:00 Sale] Burmese Unheated Ruby 0.227ct Loose Stone, Nikko Kan
Sale price¥45,800
![[Available at 10 PM on January 10th] Cornflower Blue Sapphire 4.5mm/0.430ct Loose Stone AIGS](http://store.karatz.jp/cdn/shop/files/P8214781_694819ef-19a1-4c6b-b218-44465e22231f.jpg?v=1767738514&width=2618)
![[On Sale at 10 PM on January 9th] Brazilian Indigolite Tourmaline 0.421ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/P8214968_5efc3821-63a5-458b-ad37-e6ff348a5599.jpg?v=1767738401&width=3143)
![[On Sale at 10 PM on January 8th] Colombian Emerald 0.091ct Loose](http://store.karatz.jp/cdn/shop/files/P8295775_e8a25644-3f7e-4f35-b74b-ff2fdb5bf22b.jpg?v=1767706799&width=2349)
[On Sale at 10 PM on January 8th] Colombian Emerald 0.091ct Loose
Sale price¥15,800
![[On Sale at 10 PM on January 8th] Tanzanian Dragon Garnet 1.181ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P9100924_95b3eed2-cddd-486b-8c27-8bdd5171c94f.jpg?v=1767706195&width=2847)
![[On Sale at 10 PM on January 8th] Tanzanian Dragon Garnet 1.042ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P9101062_4874d75d-ef25-47b8-8ebb-bd24e2502d84.jpg?v=1767705995&width=3021)
![[On Sale at 10 PM on January 6th] Mexican Water Opal (Faceted) 0.215ct Loose (Contralus Opal)](http://store.karatz.jp/cdn/shop/files/PC043015_5b1ccc8f-4878-4de6-825d-afb89bf60c71.jpg?v=1767484572&width=3310)
![[On Sale at 10 PM on January 6th] Brazilian Indigolite Tourmaline 1.470ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/PA306106.jpg?v=1767484287&width=4000)
![[12/29 22:00] Madagascar Grandidierite 0.167ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC267113_1f28ee6c-532f-4544-9fa1-71bbfdd87766.jpg?v=1766751551&width=2930)
[12/29 22:00] Madagascar Grandidierite 0.167ct Loose Stone
Sale price¥39,800
![[On Sale at 10 PM on January 9th] Indian Parrot Chrysoberyl Cat's Eye 1.225ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC266874.jpg?v=1767700054&width=4000)
![[1/1 10pm Sale] Indian Parrot Chrysoberyl Cat's Eye 5.6mm/1.715ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC266813_06203e96-f1ae-4125-a0e8-f1fb5db0312c.jpg?v=1767072295&width=2994)
![[12/29 22:00 Sale] Pakistani Lazurite (Azurite) 0.171ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC267033.jpg?v=1766751551&width=4000)
[12/29 22:00 Sale] Pakistani Lazurite (Azurite) 0.171ct Loose Stone
Sale price¥49,800
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.
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.