Why is International Ge falling/rising?

As of 11-Sep, International Gemmological Institute (India) Ltd is experiencing a decline in its stock price, currently at Rs 364.85, which reflects a decrease of Rs 8.55 or 2.29%. Today's performance indicates that the stock has underperformed its sector by 2.55%, with an intraday low of Rs 363.15. Despite a recent positive trend with a 6.70% increase over the past week and a 10.83% rise over the past month, the stock has a year-to-date decline of 34.08%. The company has shown strong long-term fundamentals, including a high average Return on Equity (ROE) of 40.21% and a low Debt to Equity ratio, which may support its valuation despite the current price drop. Additionally, the company has reported positive results in the last two quarters, with significant growth in operating cash flow and profit after tax.
Broader Market Context: The stock's recent performance contrasts with the benchmark Sensex, which has only increased by 1.03% over the past week and 1.17% over the past month. This suggests that while the stock has seen short-term gains, it is still facing challenges in the broader market context, particularly given its substantial year-to-date decline compared to the Sensex's 4.36% increase. The rising investor participation, indicated by a significant increase in delivery volume, may suggest a potential for recovery, but the current price movement reflects ongoing volatility and investor sentiment that is cautious in the face of recent performance.