Gemstones are believed to have elaborate effects on well-being by warding off evil, providing healing properties, and influencing fate and destiny. They can balance the cosmic energies received from planets at birth by drawing in stronger rays of the associated planet when worn. The most significant application is in astrology, where gems avert negative planetary effects and enhance positive constellations based on one's zodiac sign and time of birth. Additionally, gemstones are connected to color therapy and can heal health conditions by correcting imbalances in the colors of life force energy.