Why is International Ge falling/rising?

As of 02-Jul, International Gemmological Institute (India) Ltd is experiencing a decline in its stock price, currently at 366.40, which reflects a decrease of 2.1 points or 0.57%. The stock has underperformed its sector by 0.51% today and has been on a consecutive fall for the last two days, resulting in a total decline of 2.77% during this period. Additionally, the stock's performance over the past week shows a modest gain of 2.22%, but it has significantly underperformed over the past month with a loss of 4.26% and a year-to-date decline of 33.80%. Despite a high management efficiency indicated by a return on equity (ROE) of 40.21% and a low debt-to-equity ratio, the stock's valuation appears expensive with a price-to-book value of 14.9, which may deter some investors.
Broader Market Context: The benchmark, Sensex, has shown a positive return of 0.79% over the past week and a gain of 2.50% over the past month, contrasting sharply with the stock's performance. While institutional investors have increased their stake by 0.78% in the last quarter, indicating growing confidence, the stock's liquidity has been affected by a significant drop in delivery volume, which fell by 34.49% compared to the five-day average. This decline in investor participation, coupled with the stock's recent performance and high valuation concerns, suggests a challenging environment for the stock despite some positive financial indicators.