Dear Suraj,
Please see my post i have clearly mentioned its side effects. It will create problem in your health issues and mental agony and it will cause troubles for your MBA degree. If you want to undergo all these then you can proceed with wearing emerald. Only few un experienced astrologer would recommend to wear gemstone as per the dasha and antar dasha bhukti.
GOd BLESS!!!
Srinivasa Temkar