Brazilian blue tourmaline 0.353ct loose
Sale price¥9,800
[Sold at 10 PM on September 5th] Pink sapphire 0.179ct loose stone
Sale price¥6,980
![[On sale at 10pm on October 20th] Pink sapphire 0.115ct loose stone](http://store.karatz.jp/cdn/shop/files/P8255621_463d483c-cdd2-4585-9677-215bae74f400.jpg?v=1760826645&width=2994)
[On sale at 10pm on October 20th] Pink sapphire 0.115ct loose stone
Sale price¥6,980
[On sale at 10pm on October 20th] 0.295ct loose blue sapphire
Sale price¥7,980
![[On sale from 10/20 at 10pm] 0.333ct loose sapphire](http://store.karatz.jp/cdn/shop/files/P8255095_7d63661f-ec88-4c7d-a133-3a2c3f224506.jpg?v=1760826646&width=4000)
[On sale from 10/20 at 10pm] 0.333ct loose sapphire
Sale price¥8,800
[On sale at 10pm on September 6th] Russian emerald 0.249ct loose stone
Sale price¥158,000
[On sale at 10pm on September 6th] Russian emerald 0.269ct loose stone
Sale price¥79,800
Russian demantoid garnet (horsetail recognized) 4.6mm/0.425ct loose
Sale price¥69,800
Russian demantoid garnet (horsetail recognized) 4.4mm/0.382ct loose
Sale price¥79,800
Russian demantoid garnet (horsetail recognized) 3.2mm/0.175ct loose
Sale price¥15,800
Purple sapphire 0.313ct loose
Sale price¥6,980
Purple sapphire 0.220ct loose
Sale price¥3,980
Purple sapphire 0.240ct loose
Sale price¥4,980
Afghanite 0.496ct loose Japanese-German book
Sale price¥9,800
Burmese red spinel 0.418ct loose
Sale price¥55,800
Peach benitoite 0.135ct loose Japanese-German book (orange/blue)
Sale price¥158,000
Paraiba tourmaline from Brazil 0.224ct loose (CuO:0.8%, MnO:1.7%)
Sale price¥29,800
Paraiba tourmaline from Brazil 0.203ct loose (CuO: 0.9%, MnO: 2.6%)
Sale price¥29,800
Rough diamond (makeable) 0.353ct loose
Sale price¥25,800
Rough diamond (makeable) 0.279ct loose
Sale price¥25,800
Brazilian Paraiba tourmaline 0.455ct raw stone (CuO: 0.9%, MnO: 2.2%)
Sale price¥15,800
Brazilian Paraiba tourmaline 0.448ct raw stone (CuO:2.7%, MnO:2.0%)
Sale price¥19,800
Brazilian Paraiba tourmaline 0.156ct raw stone (CuO:2.5%, MnO:0.5%)
Sale price¥15,800
Brazilian alexandrite 0.102ct loose
Sale price¥15,800
Brazilian alexandrite 0.091ct loose
Sale price¥15,800
0.466ct Saffron Loose Stone with Certificate of Authenticity
Sale price¥37,800
Padparadscha sapphire 0.220ct loose stone
Sale price¥34,800
Cornflower blue sapphire 0.490ct loose stone
Sale price¥98,000
Pigeon Blood Ruby 0.280ct Loose
Sale price¥49,800
Pigeon Blood Ruby 0.340ct Loose
Sale price¥59,800
[12560252] Zambian emerald 0.138ct loose stone
Sale price¥8,800
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.