Why is International Ge falling/rising?

As of 05-Aug, International Gemmological Institute (India) Ltd is experiencing a decline in its stock price, currently at Rs 370.25, which reflects a decrease of Rs 7.05 or 1.87%. The stock has underperformed its sector by 1.55% today, reaching an intraday low of Rs 368.8. Over the past week, the stock has fallen by 8.81%, while its one-month performance shows a decline of 2.87%. Despite having strong long-term fundamentals, including a high average Return on Equity (ROE) of 40.21% and a low Debt to Equity ratio, the stock's recent performance has been negatively impacted by a significant drop in investor participation, with delivery volume decreasing by 69.72% compared to the five-day average.
In the broader market context, the Sensex has only decreased by 0.77% over the past week, indicating that the stock's decline is more pronounced than the overall market trend. While the company has reported positive results in the last two consecutive quarters, including a notable growth in profit after tax, the stock's performance year-to-date shows a substantial decline of 33.10%, contrasting sharply with the Sensex's increase of 3.29%. This suggests that, despite the company's strong fundamentals, external market conditions and reduced trading activity are contributing to the stock's downward movement.