Considered to be the most valuable gemstone variety in the Corundum mineral species, the distinct red in Ruby is caused by the presence of chromium. The color spectrum of Rubies found across the world varies from orange-red to purplish-red. Color is the most significant factor affecting a ruby’s value: Fine gems are pure, vibrant red to slightly purplish red.

Most Sri Lankan Ruby varieties are pinkish red and display a tint of purple, caused by the presence of iron in addition to chromium oxide, which is unique to its Sri Lankan origin. Ruby deposits in Sri Lanka are not distinctively localized and are found in the same mine with other gemstones of the Corundum family while the stones of better quality have been often found within the Embilipitiya – Udawalawe area.


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