![[Available at 10 PM on January 4th] Limited Edition of 12 Rare Stones: 0.22ct Brazilian Paraiba Tourmaline (with sorting), Euclase from Zimbabwe, Paraiba Tourmaline from Mozambique, Benitoite, Axinite, and Cinnabar (Multiple Purchase Discounts Available)](http://store.karatz.jp/cdn/shop/files/collage_3ec93ed8-ea70-488d-ba1e-187ea6d05e6b.png?v=1767431683&width=2250)
![[Available at 10 PM on January 3rd] Limited to 13 stones: Beryl Gacha (including Koshu Kiriko Aquamarine Vortex Cut) 1 loose stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_ba3a6a6d-fdb6-4bcf-93c7-45bfc9f2eec2.png?v=1767312127&width=2250)
![[Available at 10 PM on January 2nd] [Limited to 11 stones] Bicolor Gacha (Includes Zimbabwean Bicolor Euclase, Bicolor Sapphire, and Bicolor Zoisite) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/2_136f37fb-69b3-499b-8e51-476777c64b58.png?v=1767140501&width=1080)
![[12/30 22:00 Sale] Brazilian Pyrite in Quartz 9.477ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC255913.jpg?v=1766836372&width=4000)
![[12/30 22:00 Sale] German Auchenite 3.1mm/0.100ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC256175.jpg?v=1766836373&width=4000)
![[On Sale at 10 PM on January 10th] Unheated Pigeon Blood Ruby 0.710ct Loose Stone AIGS](http://store.karatz.jp/cdn/shop/files/S__227328011_6302da2a-b07e-40b3-a300-bf8d8daba742.jpg?v=1767700603&width=907)
![[On Sale at 10 PM on December 30th] Brazilian Paraiba Tourmaline 0.128ct Loose Stone (CuO: 1.7%, MnO: 3.4%)](http://store.karatz.jp/cdn/shop/files/PC245655_ac0ce476-7a7e-4c44-82ee-abf3e3b45f67.jpg?v=1766836596&width=3240)
![[1/1 22:00 Sale] Royal Blue Sapphire 1.00ct Loose Stone AIGS](http://store.karatz.jp/cdn/shop/files/PC245767_d36873b8-3aeb-4b27-93f3-b3b6822275ed.jpg?v=1767072543&width=2993)
![[1/4 22:00 Sale] Unheated Star Ruby from Myanmar 0.617ct Loose](http://store.karatz.jp/cdn/shop/files/PC250812.jpg?v=1767395604&width=4000)
![[On Sale at 10 PM on January 9th] Brazilian Medusa Quartz (Paraiba Quartz) 0.848ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC267173.jpg?v=1767700054&width=4000)
![[1/1 10pm Sale] Indian Parrot Chrysoberyl Cat's Eye 5.0mm/1.099ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC266928.jpg?v=1767072163&width=4000)
![[12/29 22:00 Sale] Madagascar Grandidierite 0.169ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC267063_b1a90e97-46bb-4071-8263-d428ae161e16.jpg?v=1766751551&width=2742)
![[Available at 10 PM on January 10th] Limited to 5 stones: Zoisite Gacha with Certificate of Authenticity (Includes Pink Zoisite, Yellow Zoisite, Green Zoisite, and Tanzanite, 5mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_dda8651d-e3f2-4fd4-bd4d-9e72d221f95a.png?v=1767790016&width=2250)
![[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)
![[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 11th] Limited Quantities! January Campaign Gem Gacha! Green Diamonds, Hot Pink Spinel, and More, Normally ¥39,800! Multi-Purchase Discounts Available!](http://store.karatz.jp/cdn/shop/files/collage20260108_168ef943-ba0a-4c60-a89f-e046ec2624b2.png?v=1767842365&width=2250)
![[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)
![[12558122] Afghanistan blue tourmaline 0.268ct loose stone](http://store.karatz.jp/cdn/shop/files/P1098685_5eaaf8df-bafa-40a6-81ba-305731a01732.jpg?v=1767992828&width=2972)
[12558122] Afghanistan blue tourmaline 0.268ct loose stone
Sale price¥12,800
![[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
![[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
Myanmar color change zircon 1.043ct loose stone
Sale price¥59,800
![[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
![[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
![[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] 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 12th] Limited to 15 Stones! Rare Stone Gacha! 98,000 Yen: Oil-Free Red Beryl with GIA, Shinsha, Paraiba Tourmaline from Mozambique, Benitoite, and More! Discounts Available for Multiple Purchases!](http://store.karatz.jp/cdn/shop/files/collage_16319e95-ecf6-42fd-a0fc-c252fa60c22b.png?v=1767918506&width=2250)
![[Available at 10 PM on January 10th] Limited Edition Pink Diamond Gacha! 13 Diamonds 💎 Includes Fancy Colors and Princess Cuts, Normally ¥49,800. Discounts available for multiple purchases.](http://store.karatz.jp/cdn/shop/files/3_5fae7d1d-bd47-41c8-a52c-e433557ba66a.png?v=1767869210&width=4000)
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.