Fist of all I feel there is a confusion of her time of Birth which is not confirmed. As we discussed earlier I would take her birth time as before 3Pm that would make her Scorpio native. For Scorpio native Moon rules the 9th house or the bhagyastan. Moon is the bhagya swami or Lord in destiny in the 8th house, any planet which goes into the 8th house loses its significance. For 9th house the 8th house is the loss of 9th house. Taking that into consideration, we have to give strength to her moon, and therefore she can wear Pearl. It will help control her negativity, her temperament and also give her a direction in life. Moon is the significator of mind, it is a luminary, therefore a strong Moon is the most important in the horoscope. It will improve her Bhagya or Destiny and luck.