The Chartreux, or also referred to as the Carthusians, is a French breed cat with blue-gray coat and amber eyes. It is believed due to their coat structure that the Chartreux originated in the mountains of Syria or the Rocky Mountains between Turkey and Iran.
Chartreux - The Chartreux dates back to 16th-century France. Its thick, velvety coat is any shade of blue-gray, from ash to slate, with the tips lightly brushed with silver. The Chartreux's copper or gold eyes hint at its relation to the Russian Blue, whose eyes are a deep emerald green.