There are many different shades of ruby gemstones, depending on their origin and the presence of trace elements in their crystal structure. Rubies are a type of corundum mineral that are known for their deep red color, which is caused by the presence of chromium in the crystal structure. Other trace elements such as iron, titanium, and vanadium result in shades of pink, purple, orange, and brown. Ruby Gemstone Colors When describing a color in gemmology (study of gems), the primary color is stated last and the secondary color stated first. So, for rubies the primary color is red and some of the most common ruby shades are purplish-red, orange-red…