Sheldon stepped in. “Correct. But it is moissanite. It’s almost as hard as diamond, more brilliant, and environmentally friendly. If she rejects you because of the gem’s chemical composition, she’s failing basic material science and human decency.”
“Mom,” Sheldon said, “your repetitive fidgeting with that box suggests anxiety. Statistically, anxiety at breakfast is caused by either financial trouble or hidden jewelry. Given the box, I’m leaning toward the latter.” young sheldon s02e08 hevc
Sheldon’s eyes lit up. “Ah! A scientific inquiry! We can determine its authenticity using thermal conductivity, refractive index, and—" Sheldon stepped in
“Not a diamond,” Linkletter said. “It’s a lab-created silicon carbide. Pretty, but not valuable.” It’s almost as hard as diamond, more brilliant,
“Sheldon, no experiments. I just need a simple answer.”
Mary sighed and opened it. Inside was a modest diamond ring. “This was your Meemaw’s engagement ring. I’m thinking of giving it to Georgie for his girlfriend… but I’m not sure it’s real.”