![[Available at 10 PM on December 13th] Limited to 9 stones: Australian Black Opal (including semi-black opal) Loose Stone Gacha (Includes 1 bonus white opal) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_49cd177f-5e60-4b58-a9ce-7d57e5ac3901.png?v=1765431388&width=2250)
American benitoite 0.147ct loose
Sale price¥35,800
American benitoite 0.097ct loose
Sale price¥24,800
American benitoite 0.101ct loose
Sale price¥25,800
American benitoite 0.127ct loose
Sale price¥28,800
American benitoite 0.133ct loose
Sale price¥29,800
American benitoite 0.102ct loose
Sale price¥22,800
American benitoite 0.187ct loose
Sale price¥39,800
Bicolor sapphire from Madagascar 0.252ct loose
Sale price¥9,800
Bicolor sapphire from Madagascar 0.259ct loose
Sale price¥4,980
Bicolor sapphire from Madagascar 0.198ct loose
Sale price¥7,980
Bicolor sapphire from Madagascar 0.212ct loose
Sale price¥7,980
Bicolor chrysoberyl from Madagascar 1.590ct loose
Sale price¥19,800
Bicolor chrysoberyl from Madagascar 1.520ct loose
Sale price¥18,800
![[12/14 22:00] American Peridot 5.1mm/0.573ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC053143_201007ec-4094-4045-9e7d-646a2b3c9fa8.jpg?v=1765586545&width=4000)
[12/14 22:00] American Peridot 5.1mm/0.573ct Loose Stone
Sale price¥9,800
![[12/14 22:00 Sale] Blue beryl (Mashish beryl) 3.268ct loose stone](http://store.karatz.jp/cdn/shop/files/PC052961.jpg?v=1765586000&width=4000)
[12/14 22:00 Sale] Blue beryl (Mashish beryl) 3.268ct loose stone
Sale price¥25,800
![[12/14 22:00] Brazilian Yellow Beryl 0.913ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052923_b87467a6-d08c-4b40-a579-b64ebb94e8e8.jpg?v=1765586665&width=4000)
[12/14 22:00] Brazilian Yellow Beryl 0.913ct Loose Stone
Sale price¥8,800
![[12/7 22:00] American Peridot 0.385ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052641_37df0278-4a00-4c48-9087-8187fb202890.jpg?v=1765587659&width=4000)
[12/7 22:00] American Peridot 0.385ct Loose Stone
Sale price¥8,800
![[On Sale at 10 PM on December 9th] American Peridot 0.855ct Loose Stone (Lily Pad Inclusions)](http://store.karatz.jp/cdn/shop/files/PC042970.jpg?v=1765631710&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)
[12/10 22:00 Sale] Pakistani Ludwigite Peridot 0.609ct Loose Stone
Sale price¥6,980
Australian boulder opal 6.980ct loose
Sale price¥6,980
[12/23 22:00] Australian Black Opal 2.736ct Loose
Sale price¥98,000
[12/23 22:00] Mexican Fire Opal 1.283ct Loose
Sale price¥29,800
[12/23 22:00] Mexican Fire Opal 1.413ct Loose
Sale price¥39,800
![[12/21 22:00] Brazilian Bicolor Tourmaline 7.268ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC093719.jpg?v=1766099644&width=4000)
[12/21 22:00] Brazilian Bicolor Tourmaline 7.268ct Loose Stone
Sale price¥158,000
![[12/21 22:00] Zambian Bicolor Tourmaline 4.019ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC093683_ab3ca4d5-82d7-402e-b474-5bcf0af831a4.jpg?v=1766221998&width=3121)
[12/21 22:00] Zambian Bicolor Tourmaline 4.019ct Loose Stone
Sale price¥98,000
![[12/21 22:00] Zambian Bicolor Tourmaline 6.536ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_dfe0dd8f-7d35-4a35-856a-f6f364dbf15e.png?v=1766222390&width=2250)
[12/21 22:00] Zambian Bicolor Tourmaline 6.536ct Loose Stone
Sale price¥128,000
![[On Sale at 10 PM on December 21st] Madagascar Bicolor Sapphire 5.8mm/1.006ct Loose](http://store.karatz.jp/cdn/shop/files/PC093540.jpg?v=1766222404&width=4000)
Australian boulder opal 4.470ct loose
Sale price¥25,800
Petalite 2.858ct loose
Sale price¥7,980
Paraiba tourmaline from Mozambique 0.207ct loose
Sale price¥9,800
Mexican Fire Opal 4.5mm/0.244ct Loose
Sale price¥9,800
Chrysoberyl cat's eye 2.283ct loose
Sale price¥12,800
Brazilian Paraiba tourmaline 0.420ct raw stone (CuO:1.6%, MnO:1.3%)
Sale price¥69,800
Paraiba tourmaline from Mozambique 0.229ct loose
Sale price¥9,800
Chrysoberyl cat's eye 2.553ct loose (bicolor)
Sale price¥39,800
Australian boulder opal 3.695ct loose
Sale price¥14,800
Australian boulder opal 2.470ct loose
Sale price¥7,980
American red beryl 2.9mm/0.094ct loose
Sale price¥29,800
!["PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring with Inspector Design [Ginoza Nobuchika Model] "London Blue Topaz"](http://store.karatz.jp/cdn/shop/files/a2355d930e69eb70c83aa0cfa4d17082_e078bd80-e8f1-4c34-910c-d2227b929fcd.png?v=1747953944&width=3519)
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.