Ruby Gemstone (Manik Gemstone) - To Improve Social ImageRuby gemstone or Manikya occupies the seat of the king among gemstones. The royal stone belongs to the corundum family. Do not get deluded by its silky appearance; actually, this gem is solid with a hardness of nine on a scale of ten. It possesses high definite gravity viz., 3. 9 4. 1 & 1. 76 to 1. 77 is its refractive index. Aluminium and oxygen are two essential ingredients that together constitute the rich ruby gem. Usually, Ruby is accessible&