![[On sale September 14th at 10 PM] {Only one left} Blue Sapphire Gacha includes two unheated royal blue sapphires (with AIGS certificate) (plus one Teppanawa Mine sapphire) {Multiple purchase discounts available}](http://store.karatz.jp/cdn/shop/files/2_d319ea2c-a474-49aa-82c2-aff988fde6b8.png?v=1757212957&width=2000)
![[On sale from 10pm on 5/5] Limited to 11 stones Russian Demantoid Garnet (2-2.3mm, round cut, with horsetail) 1 stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010012_7b06a2e7-6557-46f8-94d4-32ff2a2d9f0b.jpg?v=1745885255&width=4000)
![[Available at 10 PM on September 6th] Limited to 10 Blue Stones Gacha (Paraiba Tourmaline, Cobalt Garnite, Indigo Tourmaline with Certificate of Authenticity, Zimbabwean Euclase with Certificate of Authenticity) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/collage_60855bde-a7a8-410f-8b3c-f4a74a0ad345.png?v=1757144518&width=2000)
![[Available at 10 PM on August 31st] [Limited to 9 stones] Brazilian Rainbow Aquamarine Loose Stone (Average 1.0 carat, Pear Sheep Cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_a4d9bef3-5745-4730-8adf-5950e9068581.png?v=1756459860&width=2000)
![[On Sale 10/7 at 10 PM] [Cat Cut] Brazilian Goethite-in-Amethyst 0.561ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034391.jpg?v=1759630940&width=4000)
![[Available at 10 PM on August 16th] [Limited to 9 stones] Spinel Gacha (August birthstone) including one bicolor spinel (0.93 ct) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010571_85f9831c-2c1f-45ba-bac5-05346852b5f9.jpg?v=1755304706&width=4000)
![[Available at 10 PM on August 9th] [Limited to 2 stones] 1 Nigerian Cobalt Garnite [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010004_7aa29a69-1420-41a8-b844-13ca5889b11e.jpg?v=1754617115&width=4000)
![[On Sale at 10 PM on October 8th] Tanzanian Sunstone (Illusion Sunstone) 0.347ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034357_147fe577-6d33-48e8-9d87-b0ab85c6c7c9.jpg?v=1759633891&width=3194)
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.