According to astrology, not everyone is suited to wear emerald stones. Emerald is associated with the planet Mercury (Budh), and it may not be beneficial for people whose Mercury is weak, afflicted, or placed in a negative house in their birth chart. Specifically, individuals with Mercury as a malefic planet or those undergoing adverse Mercury periods (Mahadasha or Antardasha) should avoid wearing emerald. People born under zodiac signs ruled by planets that are enemies of Mercury, such as Moon (Cancer), Mars (Aries and Scorpio), or Jupiter (Sagittarius and Pisces), should also be cautious. It is always recommended to consult a qualified astrologer before wearing an emerald, as the effects can vary depending on one’s horoscope.