(1) Цвят. The ruby with the best color is called “Кръвта на Pigeon”, това е, the color is as red as the blood of a pigeon, with a bright red color. Разбира се, true pigeon blood rubies are very rare. Rubies are the best in category A (“Кръвта на гълъба”), followed by category B (Гълъб кръв […]