Many Hindus believe that worshipping Ganesh Murti (idol)
made of emerald or panna stone is highly auspicious and meritorious. This is
based on the belief is that Ganesha rules Budh Grah (Mercury). As pert Hindu
astrology, wisdom, intelligence and education are governed by Budh Grah. By
worshipping emerald murti of Ganesh, Budh becomes benign and blesses the
devotee. It also helps in reducing any bad phase associated with Budh Grah.
Budh Graha, Mercury, is one among the navgrahas, nine
planets, as per Hindu tradition. The movement of Budh Grah in a horoscope is
very important in Hindu astrology.

People who are associated with selling and making of Panna
Stone Ganesh murti are of the opinion that worship of it helps in business and
investments as it provides the right wisdom. Children who regularly offer
prayers to Emerald stone murti develop good intelligence and perform well in
their studies.
Hindu Blog opinion
Murti is a good help in improving concentration and focus.
Daily prayers and few minutes contemplating in front of the murti is of great
help. But expecting murtis to perform miracles in exams and in business without hard work and
determination will be foolishness.
The above article is answer to many queries
that the blog received regarding worship of Emerald Ganesh murti.