Gemstone Astrology: Don't Wear These Gemstones, Or They Might Ruin Your ... People used to wear stones to rectify the situation of planets in their birth chart. The gemstones such as Sapphire, Coral, Pearl, Diamond, Emerald, Ruby, Topaz, etc. undoubtedly have a connection with some or any of the planets. To Know More On This Subject, Talk To The Best Astrologers