![[On sale November 3rd at 10pm] Win two unheated royal blue sapphires (with AIGS certificate) in the Blue Sapphire Lottery (Multiple purchase discounts available)](http://store.karatz.jp/cdn/shop/files/1_96affec0-626e-4648-9cd4-8b45e4e0d80c.png?v=1762040852&width=4000)
![[On Sale 11/3 at 10 PM] Takeshi Yamamoto's Artwork Gacha (Fire Flower Cut, Bonus: Yamamoto Polished Planite) 1 Loose Stone 💎 {Multiple Purchase Discounts Available}](http://store.karatz.jp/cdn/shop/files/collage_7a956bdc-1151-4661-ab7f-6a2a4cf7e1af.png?v=1762045136&width=2250)
![[Sales Start November 2nd at 10 PM] Win an 8.16ct Sky Blue Topaz from Koshu Kiriko (Sakura Kiriko) and more in the November Birthstone Topaz Lottery! 💎 {Multiple Purchase Discounts Available}](http://store.karatz.jp/cdn/shop/files/collage_683e1d28-a7c3-4109-868d-479fec634702.png?v=1762054840&width=2250)
![[12/31 22:00] American Red Beryl 2.0mm/0.032ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PB070323_cd938735-6c23-4cda-a87d-e9e9afd5063a.jpg?v=1767104282&width=1533)
![[12/31 22:00] American Red Beryl 2.2mm/0.049ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PB070390_d056bbb2-23d0-482f-8b2a-ff8c42c2dabe.jpg?v=1767104282&width=1903)
![[12/31 22:00] Tanzanian Almandine Garnet 3.339ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PB070759.jpg?v=1767104206&width=4000)
![[On sale November 8th at 10pm] Limited to 9 stones: Carving Gacha (Opal, Tourmaline, Tsavorite Garnet) 1 loose stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_3c1f4b82-5dc0-4183-a4c0-c9d7900fd6ab.png?v=1762565061&width=2250)
![[Available at 10 PM on November 9th] Pink Diamond Gacha 💎 (Includes two Fancy Intense 0.063ct diamonds with a medium-sized gemstone, normally priced at ¥98,000, and two Fancy Purplish Pink 1.7mm 0.021ct diamonds) {Multiple purchase discounts available}](http://store.karatz.jp/cdn/shop/files/collage_4c9a5e21-8f43-435f-bda0-60a38f37d7f9.png?v=1762567311&width=2250)
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.