![[Available at 10 PM on January 19th] [Dandelion Cut] Tibetan Color-Change Andesine 8.0mm/1.883ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC240687_17092de1-0b80-4a3c-84f4-3be10962a6ea.jpg?v=1768701027&width=3302)
![[On sale at 10pm on January 24th] 1.689ct loose teal blue sapphire](http://store.karatz.jp/cdn/shop/files/PC094302.jpg?v=1769086511&width=4000)
[On sale at 10pm on January 24th] 1.689ct loose teal blue sapphire
Sale price¥98,000
Brazilian green tourmaline 3.102ct loose stone
Sale price¥69,800
Sri Lankan star sapphire 5.066ct loose
Sale price¥69,800
Australian black opal 2.736ct loose
Sale price¥98,000
Sri Lankan star sapphire 3.821ct loose
Sale price¥79,800
Australian white opal 4.170ct loose
Sale price¥69,800
![[1/11 22:00 Sale] Sri Lankan Star Sapphire 3.317ct Loose](http://store.karatz.jp/cdn/shop/files/PC105054.jpg?v=1767910913&width=4000)
[1/11 22:00 Sale] Sri Lankan Star Sapphire 3.317ct Loose
Sale price¥59,800
![[1/3 22:00 Sale] Sri Lankan Star Sapphire 11.342ct Loose](http://store.karatz.jp/cdn/shop/files/PC104916.jpg?v=1767139824&width=4000)
[1/3 22:00 Sale] Sri Lankan Star Sapphire 11.342ct Loose
Sale price¥69,800
Sri Lankan blue sapphire 1.008ct loose stone
Sale price¥69,800
Australian boulder opal 2.326ct loose
Sale price¥69,800
Mexican Cantera Opal 9.166ct Loose
Sale price¥69,800
Zambian bicolor tourmaline 4.019ct loose stone
Sale price¥98,000
Sphene from Madagascar 1.229ct loose
Sale price¥55,800
South African rhodochrosite 1.333ct loose Japanese-German edition
Sale price¥98,000
Dioptase from Namibia 3.1mm/0.132ct loose Japanese-German edition
Sale price¥55,800
![[On Sale at 10 PM on January 11th] 2.275ct Australian Black Opal Loose Stone (Double-Sided)](http://store.karatz.jp/cdn/shop/files/P1088453.jpg?v=1767942327&width=4000)
Dioptase from Namibia 0.229ct loose Japanese-German book
Sale price¥69,800
Dioptase from Namibia 3.3mm/0.162ct loose Japanese-German edition
Sale price¥79,800
Oregon Sunstone from the United States, 4.678ct loose stone
Sale price¥69,800
Hemimorphite 34.490ct loose
Sale price¥55,800
Paraiba tourmaline from Brazil 0.144ct loose (CuO:0.9%,MnO:2.8%)
Sale price¥55,800
Cobalt spinel from Vietnam 2mm/0.031ct loose Japanese-German edition
Sale price¥59,800
Brazilian bicolor tourmaline 4.497ct loose stone
Sale price¥69,800
Brazilian Yellow Beryl 9.747ct Loose Stone
Sale price¥98,000
American oil-free red beryl 2.5mm/0.050ct loose GIA
Sale price¥59,800
Madagascar Dumortierite (single crystal) 0.195ct loose stone
Sale price¥89,800
Pink spinel 3.208ct loose
Sale price¥98,000
Russian Demantoid Garnet 0.192ct Loose Stone
Sale price¥79,800
Illusion Bicolor Tourmaline 3.202ct Loose Stone
Sale price¥69,800
Afghanistan Green Tourmaline 7.8mm/1.738ct Loose Stone
Sale price¥59,800
Brazilian pink tourmaline 2.765ct loose stone
Sale price¥69,800
Sri Lankan saffron 0.738ct loose stone
Sale price¥98,000
Unheated Ruby 4.5mm/0.430ct Loose GIT
Sale price¥98,000
Colombian emerald 0.176ct loose stone
Sale price¥59,800
Tanzanite from Tanzania 7.4mm/1.747ct loose stone
Sale price¥59,800
Brazilian bicolor tourmaline 2.341ct loose stone
Sale price¥79,800
Brazilian pink tourmaline 1.515ct loose stone
Sale price¥98,000
Sri Lankan purple spinel 1.060ct loose stone
Sale price¥98,000
Russian Demantoid Garnet (Horsetail) 0.256ct Loose Stone
Sale price¥79,800
Greenland Ruby 0.360ct Loose Stone with Certificate
Sale price¥69,800
0.167ct loose alexandrite from Russia
Sale price¥98,000
Russian Alexandrite 0.083ct loose stone
Sale price¥69,800
Russian Alexandrite 2/5mm/0.070ct Loose Stone
Sale price¥59,800
Bicolor Euclase from Zimbabwe 0.084ct loose
Sale price¥98,000
18KPG pink sapphire 0.32ct brown diamond ring
Sale price¥69,800
American Benitoite 0.165ct loose stone
Sale price¥59,800
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.