Why is International Ge falling/rising?

As of 31-Jul, International Gemmological Institute (India) Ltd is experiencing a decline in its stock price, currently at Rs 393.80, which reflects a decrease of Rs 24.1 or 5.77%. Today's price summary indicates that the stock has underperformed its sector by 5.17% and has fallen after two consecutive days of gains. It opened with a loss of 3.8% today and reached an intraday low of Rs 390.85, marking a decrease of 6.47%. In terms of returns, the stock has seen a 4.58% decline over the past week, while it has increased by 6.87% over the past month. Despite this recent downturn, the company boasts strong long-term fundamentals, including an average Return on Equity (ROE) of 40.21% and a low Debt to Equity ratio, which may support its value in the long run. Additionally, the company has reported positive results for the last two consecutive quarters, with significant growth in operating cash flow and profit after tax.
Broader Market Context: The stock's performance in the short term has been notably weaker than the benchmark Sensex, which has only declined by 1.22% over the past week. While the stock has shown some resilience with a 6.87% increase over the past month, its year-to-date performance is concerning, with a decline of 28.85% compared to the Sensex's gain of 3.90%. This disparity highlights the challenges the company faces in the current market environment, despite its strong fundamentals and rising investor participation, as indicated by a significant increase in delivery volume.