Why is International Ge falling/rising?

As of 10-Jul, International Gemmological Institute (India) Ltd is experiencing a slight increase in its stock price, currently at 390.30, with a change of 0.3 (0.08%) upwards. The stock has shown a trend reversal, gaining after two consecutive days of decline. However, it has underperformed its sector by 0.87% today. In terms of returns, the stock has increased by 4.95% over the past week but has decreased by 2.33% over the past month and has a year-to-date decline of 29.48%. Despite these fluctuations, the company has demonstrated high management efficiency with a return on equity (ROE) of 40.21% and has reported strong quarterly net sales and profit growth, which may contribute positively to investor sentiment. However, the stock is considered expensive with a high price-to-book value of 15.9, which could deter some investors.
Broader Market Context: The benchmark Sensex has shown a slight decline of 0.06% over the past week and an increase of 0.97% over the past month, indicating that the stock's short-term performance is outperforming the broader market. The increasing participation of institutional investors, who have raised their stake by 0.78% in the last quarter, suggests a growing confidence in the company's fundamentals, which may provide additional support for the stock's price. However, the significant drop in delivery volume by 55.02% compared to the five-day average indicates a potential decrease in retail investor interest, which could impact future price movements negatively.