Why is International Ge falling/rising?

As of 08-Jul, International Gemmological Institute (India) Ltd is experiencing a decline in its stock price, currently at 390.05, reflecting a decrease of 2.2 or 0.56%. The stock has underperformed its sector by 0.48% today and has fallen after three consecutive days of gains. In terms of returns, the stock has shown a 5.85% increase over the past week, but it has decreased by 3.07% over the last month and has a year-to-date decline of 29.52%. Despite a high management efficiency indicated by a return on equity (ROE) of 40.21% and a low debt-to-equity ratio, the stock is considered expensive with a price-to-book value of 15.8. Additionally, while institutional investor participation has increased, the stock's overall performance has been stagnant, generating a return of 0.00% over the past year despite a profit increase of 29%.
In the broader market context, the stock's recent performance contrasts with the benchmark Sensex, which has seen a slight increase of 0.02% over the past week and a 7.13% rise year-to-date. This suggests that while the stock has had some short-term gains, it has not kept pace with the overall market trends. The stock's liquidity remains adequate for trading, but the recent price drop indicates a potential trend reversal, which could be influenced by the high valuation despite positive financial metrics.