Why is International Ge falling/rising?

As of 17-Sep, International Gemmological Institute (India) Ltd is experiencing a price increase, currently at Rs 385.40, which reflects a rise of Rs 12.0 or 3.21%. The stock opened with a gain of 2.57% today and reached an intraday high of Rs 392, marking a 4.98% increase. Despite this positive movement, there is a noted decline in investor participation, with delivery volume falling by 34.17% against the 5-day average. The stock has outperformed its sector by 2.68% today. Over the past week, it has risen by 3.21%, and in the last month, it has gained 13.34%, although it remains down 30.36% year-to-date. The company has demonstrated strong long-term fundamentals, with a high return on equity of 40.21% and a low debt-to-equity ratio, alongside positive results in the last two quarters.
In the broader market context, the stock's recent performance has outpaced the Sensex, which has increased by 1.56% over the past week and 2.60% over the past month. This indicates that while the overall market is experiencing moderate gains, International Gemmological Institute (India) Ltd is performing significantly better in the short term. The positive operating cash flow and growth in profit after tax further support the stock's upward movement, despite the overall year-to-date decline.