Actually, it can't really be considered snooping, as Old Madam Shen's fondness for gemstones and luxury goods was well-known; it might have also been related to her origins. Although the Shen Family had been wealthy for several generations, Old Madam Shen came from humble beginnings and was said to have risen to her position by bearing a son as a concubine. Because of this, she despised Fang Ru, who came from similar origins but became the principal wife directly, and also Guo Yuzhen, who supported the concubine that had borne a son and rose in status.
However, Old Madam Shen was also fortunate, as now all of the Shen Family's descendants were related to her by blood. Out of respect for Shen Yu's face, the upper-class society that knew of her past scandals wouldn't speak of them; the younger generation was unaware, so naturally, no one would bring it up.
"Gemstone?" Shen Li thought, somewhat talking to herself, "No wonder she encountered them at the mine..."