Cabochon Cut
Mexican Cantera Opal 17.284ct Loose
Sale price¥39,800
Mexican Cantera Opal 7.520 ct Loose Stone with Appraisal
Sale price¥24,800
Mexican Cantera Opal 5.811 ct Loose Stone with Certificate
Sale price¥29,800
1.758 ct Ruby Loose Stone from Vietnam with Identification Report
Sale price¥49,800
[On Sale May 14th at 10 PM] Colombian Emerald 0.689ct Loose Stone
Sale price¥18,800
Mexican Cantera Opal 10.379ct Loose Stone
Sale price¥39,800
Mexican Cantera Opal 7.619 ct Loose Stone
Sale price¥25,800
[On sale May 6th at 10 PM JST] Mexican Cantera Opal Loose Stone 7.207ct
Sale price¥25,800
Mexican Cantera Opal 3.051ct Loose Stone
Sale price¥18,800
Mexican Cantera Opal 1.867 ct Loose Stone
Sale price¥12,800
Congo hemimorphite 4.009ct loose stone
Sale price¥22,800
Hemimorphite from Congo, 6.928 ct loose
Sale price¥29,800
Congo hemimorphite 3.510ct loose stone
Sale price¥18,800
Congo hemimorphite 4.272ct loose stone
Sale price¥25,800
Congo hemimorphite 3.399ct loose stone
Sale price¥19,800
Congo hemimorphite 4.210ct loose stone
Sale price¥25,800
Mexican egg-in opal 3.646ct loose stone
Sale price¥25,800
Mexican Egg-in-Opal 3.195ct Loose Stone
Sale price¥19,800
Mexican egg-in opal 4.879ct loose stone
Sale price¥29,800
Mexican egg-in opal 2.125ct loose stone
Sale price¥15,800
Mexican fire opal 2.499ct loose stone
Sale price¥18,800
Brazilian Dumortierite in Quartz 1.266ct Loose Stone
Sale price¥12,800
Brazilian Dumortierite in Quartz 1.559ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 2.282ct Loose Gemstone
Sale price¥18,800
Myanmar Jade (Jadeite) 0.525ct Loose Stone
Sale price¥8,800
![[12/7 22:00] Brazilian Dumortierite in Quartz 16.250ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052301_931dfc6c-1047-4bdf-821f-203298615d94.jpg?v=1765588004&width=2810)
[12/7 22:00] Brazilian Dumortierite in Quartz 16.250ct Loose Stone
Sale price¥9,800
![[12/7 22:00 Sale] Mexican Egg-in Opal 0.381ct Loose](http://store.karatz.jp/cdn/shop/files/PC053061_853dfbb9-2bb5-4b4f-abbd-aef4b76d3dd5.jpg?v=1766553969&width=4000)
[12/7 22:00 Sale] Mexican Egg-in Opal 0.381ct Loose
Sale price¥18,800
Brazilian Dumortierite in Quartz 1.131ct Loose Stone
Sale price¥12,800
Sri Lankan star sapphire 12.679ct loose
Sale price¥158,000
Australian black opal 2.736ct loose
Sale price¥98,000
Sri Lankan star sapphire 3.821ct loose
Sale price¥79,800
Mexican fire opal 1.413ct loose stone
Sale price¥39,800
Sri Lankan star sapphire 3.317ct loose
Sale price¥59,800
Sri Lankan star sapphire 11.342ct loose
Sale price¥69,800
Mexican Cantera Opal 8.432ct Loose
Sale price¥39,800
Mexican Cantera Opal 9.166ct Loose
Sale price¥69,800
Brazilian Dumortierite in Quartz 10.0mm/5.357ct Loose Stone
Sale price¥39,800
Australian boulder opal 3.122ct loose stone
Sale price¥29,800
Brazilian Dumortierite in Quartz 1.911ct Loose Stone
Sale price¥8,800
Mexican Cantera Opal 2.125ct Loose
Sale price¥39,800
Mexican Cantera Opal 5.882ct Loose
Sale price¥39,800
Salt and Pepper Diamond 5.2mm/0.863ct Loose (Cabochon Cut)
Sale price¥98,000
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.