![[On Sale at 10pm on October 5th] Russian Alexandrite 0.333ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_89c85b39-76b6-43cd-a8f3-dbe1ab17d53d.png?v=1759541829&width=2250)
[On Sale at 10pm on October 5th] Russian Alexandrite 0.333ct Loose Stone
Sale price¥79,800
![[On Sale at 10pm on October 5th] American Benitoite 0.262ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P9194811_f9a96aa6-0dac-4fed-8307-3934b3b064a5.jpg?v=1758416228&width=3061)
[On Sale at 10pm on October 5th] American Benitoite 0.262ct Loose Stone
Sale price¥128,000
Bicolor Zoisite 2.481ct loose
Sale price¥69,800
![[On Sale at 10pm on October 8th] Afghanistan Hackmanite 0.134ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1010004_06442891-88dd-4cd9-94d8-841113444d41.jpg?v=1759709908&width=2971)
![[On Sale at 10pm on October 8th] Afghanistan Hackmanite 0.121ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034188_bdf22883-abdb-4e24-a418-c1adb2f30066.jpg?v=1759634868&width=2825)
![[On Sale at 10 PM on October 8th] Brazilian Pink Tourmaline 0.385ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034263_9b010db0-a87e-4867-9081-91a11e7d2d6e.jpg?v=1759634363&width=2895)
![[On Sale at 10 PM on October 8th] Pakistani Oil-in-Quartz 0.353ct Loose Stone (Faceted)](http://store.karatz.jp/cdn/shop/files/collage_a5f64669-c631-449a-91f8-20b78bf670c4.png?v=1759634145&width=2250)
![[On Sale at 10 PM on October 6th] Madagascar Golden Iolite (Cordierite) 0.193ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034521_096b674b-5591-4711-acd0-f9df63318ff0.jpg?v=1759628928&width=2926)
![[On Sale at 10 PM on 6th October] Tanzanian Sunstone (Illusion Sunstone) 5.0mm/0.338ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034597_b9b64fbe-8bfe-4fec-9647-c67a02d73916.jpg?v=1759628545&width=3227)
![[On sale from 10/6 at 10pm] Brazilian Imperial Topaz 0.394ct Loose](http://store.karatz.jp/cdn/shop/files/PA034555_a8d40a93-ee5c-47c1-b39b-3c34085d382a.jpg?v=1759628722&width=3147)
[On sale from 10/6 at 10pm] Brazilian Imperial Topaz 0.394ct Loose
Sale price¥8,800
[On Sale at 10 PM on October 4th] Blue Sapphire 4.1mm/0.332ct Loose
Sale price¥25,800
[On sale at 10pm on September 30th] Blue sapphire 0.291ct loose stone
Sale price¥18,800
0.276ct loose hot pink spinel from Myanmar
Sale price¥19,800
[On Sale at 10 PM on September 11th] Colombian Emerald 0.222ct Loose
Sale price¥59,800
Unheated Pigeon Blood Ruby 0.300ct Loose
Sale price¥79,800
[On Sale at 10 PM on September 19th] Colombian Emerald 0.101ct Loose
Sale price¥15,800
[Sold at 10 PM on September 19th] Blue Sapphire 4.0mm/0.314ct Loose
Sale price¥112,800
Zimbabwean Bicolor Euclase 0.183ct Loose Stone
Sale price¥49,800
[On sale at 10pm on September 4th] Zambian emerald 0.119ct loose stone
Sale price¥12,800
Brazilian blue tourmaline 0.353ct loose
Sale price¥9,800
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.