A 1 carat ruby's colour is what really makes it stunning. The most valuable rubies have a vivid, almost pinkish red colour that is referred to as "pigeon blood." The stone represents riches, love, and desire because of its highly sought-after colour.
A 1 carat ruby worth is determined by a number of factors besides weight. Colour, cut, and clarity are all very important. When compared to a stone with imperfections or an unappealing colour, a well-cut, high-clarity ruby with an engaging colour will command a premium price.