Bez Ambar is an expert setter in Diamond Ring manufacturing industry for 40 years. 10 Carat Diamond Rings can be the ultimate choice to make a gift, memorable! Bez Ambar is manufacturing high quality jewelry for Tiffany&Co, Cartier, Graff and many other high-end jewelers around the globe. As a master diamond cutter, the inventor of the Princess cut, Bez Ambar, is able to provide you with the most incredible and perfect diamonds.