Natural rubies in many shapes and sizes, from loose stones to rings and pendants set in gold and silver. Ruby is the red variety of corundum, coloured by chromium, in shades from pinkish red to deep red.
Natural rubies in many shapes and sizes, from loose stones to rings and pendants set in gold and silver. Ruby is the red variety of corundum, coloured by chromium, in shades from pinkish red to deep red.