If you look at the 5 year chart of Gitanjali Gems the price has fallen from 650 in April 2013 to 30 rupees in Feb 2016. Then it slowly picked up. From April 2017 to October 2017, its main promoters value fell by 91%. This should have raised alarm bells in your mind. Apart from Government regulations on gold import, demonetization, the company also had issues with SEBI.
So, the options would be waiting. The market is at the peak and your share is falling. If you can hold on, then don't quit now.
Please follow the daily trend, Every lower circuit equal to a 5% fall, the day you see a reversal in the trend, then you can start averaging. A lot of people would advise averaging, but don't average in one shot. Start averaging in a step wise manner, you can keep adding in small lots of 10% (400) each time to spread out your risk.
The other option would be to book a loss ( you would lose around 56-58K) and then invest in a well-performing hybrid MF and then invest with a 2-4 year horizon. If have any other holdings that are giving good profit you can book profit on them and use it to equalize the taxation on short term gains. So, there are many thing you can consider. Do you have a portfolio manager, if so then have a chat with him?