Why is International Ge falling/rising?

As of N/A, International Gemmological Institute (India) Ltd is experiencing a decline in its stock price, currently at 404.65, down by 8.05 or 1.95%. Unfortunately, today's price summary data is not available, which limits the analysis of immediate trading activity. However, looking at the stock's performance over the past week and month, it has shown positive returns of 3.73% and 12.89%, respectively. Despite this recent uptick, the year-to-date performance indicates a significant decline of 26.89%. The company boasts a high management efficiency with a return on equity (ROE) of 40.21%, and it has reported strong growth in net sales and profits, which suggests underlying operational strength. However, the stock is considered expensive with a high price-to-book value of 16.5, which may deter some investors.
In the broader market context, the stock has outperformed the Sensex in the short term, with a 1-week return of 3.73% compared to the benchmark's slight decline of 0.36%. Over the past month, the stock has also fared better than the Sensex, which fell by 1.56%. Despite these short-term gains, the long-term picture is less favorable, as the stock has not generated any returns over the past year, while the Sensex has increased by 1.78%. This disparity may contribute to investor sentiment regarding the stock's valuation and future prospects, leading to its current price decline.