![[12/14 22:00 Sale] Chinese Cinnabar 1.062ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/PB070084.jpg?v=1765675256&width=4000)
![[12/14 22:00] Colombian Emerald 3.0mm/0.098ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC032274_4ad52845-33a8-4e43-b38f-58faad0568af.jpg?v=1765630554&width=4000)
![[12/12 22:00 Sale] Mali Garnet (Grossular/Andradite Garnet) 0.811ct Loose Stone from the Republic of Mali with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/PC031939.jpg?v=1765589124&width=4000)
![[12/10 22:00 Sale] Pakistani Ludwigite Peridot 0.609ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC032326.jpg?v=1765630680&width=4000)
![[12/12 22:00 Sale] Tanzanian Kornerupine 2.7mm/0.075ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC032398.jpg?v=1765589629&width=4000)
![[12/6 22:00 Sale] Blue Coral (75.469ct) Loose Stone](http://store.karatz.jp/cdn/shop/files/PC021393.jpg?v=1766550634&width=4000)
![[12/14 22:00] Colombian Emerald Rough Stone 18.900ct (with Pyrite)](http://store.karatz.jp/cdn/shop/files/PC031771.jpg?v=1765629310&width=4000)
[12/14 22:00] Colombian Emerald Rough Stone 18.900ct (with Pyrite)
Sale price¥25,800
![[12/9 22:00 Sale] Sinhalite from Sri Lanka 0.658ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC042918_2697ab93-670d-4b82-a046-48a4a6dae96e.jpg?v=1765631495&width=2928)
![[12/7 22:00] Sri Lankan Yellow Sapphire 0.508ct Loose](http://store.karatz.jp/cdn/shop/files/PC052414.jpg?v=1765588082&width=4000)
![[12/13 22:00 Sale] Tanzanite from Tanzania 0.467ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052703_85686e54-1c03-458b-9c70-c039b92a9c68.jpg?v=1765587507&width=4000)
[12/13 22:00 Sale] Tanzanite from Tanzania 0.467ct Loose Stone
Sale price¥9,800
![[12/13 22:00 Sale] Tanzanite from Tanzania 0.436ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052723_f3d01ab6-8f8c-4558-a15e-96c2758ed7b1.jpg?v=1765587394&width=2909)
[12/13 22:00 Sale] Tanzanite from Tanzania 0.436ct Loose Stone
Sale price¥8,800
![[On Sale at 10 PM on December 7th] Rainbow Garnet (Andradite Garnet) 5.4mm/0.771ct Loose Stone from Tenkawa Village, Nara Prefecture](http://store.karatz.jp/cdn/shop/files/PC042513.jpg?v=1765589719&width=4000)
![[12/14 22:00 Sale] Rainbow Garnet (Andradite Garnet) 6.7mm/1.488ct Loose Stone from Tenkawa Village, Nara Prefecture](http://store.karatz.jp/cdn/shop/files/PC042544_6ede3236-d3e4-44d5-a190-93898fe1bd84.jpg?v=1765631000&width=4000)
![[On Sale at 10 PM on December 7th] Rainbow Garnet (Andradite Garnet) 2.365ct Loose Stone from Tenkawa Village, Nara Prefecture](http://store.karatz.jp/cdn/shop/files/PC042583_ed14c696-0ca4-428b-b133-1d94fcdbc792.jpg?v=1765631180&width=3170)
![[12/13 22:00] Brazilian Dumortierite in Quartz 1.779ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052164_42ad1654-2515-4b7b-b323-95e863cc8ff9.jpg?v=1765587852&width=4000)
![[12/19 10 PM Sale] [Limited to 10 Stones] Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More Bicolor Gacha 💎 Single Loose Stone [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/3_4a75e5d4-cac2-4117-b097-242c5719f969.png?v=1765357628&width=2000)
![[/ On sale at 10pm] [Limited to 18 stones] Zircon Gacha - Win Koshu Precious Stones, Clover In, and Sakura Shapes [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/4_6ef67a3b-230e-4894-a645-568136e61d5d.png?v=1765360500&width=4000)
![[On sale until 10 PM] Limited to 10 stones: Yamamoto Cut Gacha, featuring carnelian, lemon quartz, rock crystal, and more. Discounts available for multiple purchases.](http://store.karatz.jp/cdn/shop/files/1_955659c7-bb8f-4263-af29-7d0064fd22c4.png?v=1765352106&width=4000)
![[On sale at 10 PM on December 20th] [Limited to 11 stones] Diamond Gacha including VVS/4mm, VS/3mm, etc. worth ¥40,000 [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_25f32d41-70c6-4327-9a7b-a8542eb4094f.png?v=1765949321&width=2250)
![[Sale Date: 12/19 10 PM] Fancy or Fancy Intense Pink Diamond Loose Stone (1.0mm, Round Cut) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/S__225935380_a6b0d102-29b8-47f5-b54c-1c4192c6a30f.jpg?v=1766036992&width=1117)
![[12/21 10 PM Sale] Red Gemstone Gacha including Pigeon Blood Ruby AIGS worth ¥60,000 💎 Ruby and Hot Pink Sapphire {Multiple Purchase Discounts Available}](http://store.karatz.jp/cdn/shop/files/6_f3cffe22-d312-49b8-a11f-f4328edaa0c6.png?v=1766057211&width=2000)
![[Available at 10 PM on December 20th] Limited Edition 10 Stones Rare Stone Gacha💎 Shinsha, Zimbabwean Euclase, Red Beryl, Star Peridot, and More! Discounts Available for Multiple Purchases](http://store.karatz.jp/cdn/shop/files/collage_b948d3d6-9cf6-463b-ab2e-73cf143b9cfa.png?v=1766185280&width=2250)
![[Available at 10 PM on December 20th] Limited Edition of 7 Montana Sapphires (Rock Creek Mine) Gacha (Pear Shape, Approx. 5 x 3mm) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/PC160141.jpg?v=1766185869&width=4000)
![[Available at 10 PM on December 21st] Limited to 20 stones: Neon-colored Paraiba gacha containing Brazilian Paraiba tourmaline (CuO: 2.3%, MnO: 2.6%) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/7_f9f34301-eb3e-4d15-9da0-8f6e42a390b4.png?v=1766104838&width=2000)
![[Sales start at midnight on January 1st] 🎍2026 New Year's Gacha🎍 [New Year's 10,000 Yen Gacha Gem Lucky Bag] Chance to win gems worth up to 40,000 Yen [New Year's Exclusive Gem Lucky Bag] [Discount on bulk purchase of lucky bags]](http://store.karatz.jp/cdn/shop/files/73553cccf26b803ed70483f780d9ef9e_75e57344-63e4-491e-9281-cc0900bd45b6.png?v=1767049872&width=2000)
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.