There are many colors of corundum. Олардың арасында, the red corundum is the gem Ruby, which is the most expensive among colored gemstones, so it is regarded as the “Гемдер патшасы”; blue corundum is the sapphire we know as Sapphire, and other colors of corundum are also pink Color, күлгін, сары, orange, жасыл, т.б. […]
