Yellow Sapphire Gem, aka Pukhraj Ratna, is considered as a highly auspicious stone in western as well as Vedic astrology. While western astrology assigns it as the birthstone of September month and is best recommended for the individuals born in the month of September; as per Indian astrology, it belongs to the planet Jupiter or Guru Bhraspati and is worn to gain the right path, good health, and professional prosperity. This beautiful yellow crystal belongs to the Corundum gem mineral clan and holds a hardness of 9 on the Mohs scale. Buy certified yellow sapphire gemstones from Navratan, the online gem Bazar.