I discreetly rolled my eyes as a cunning scheme was coming together in my brain. I turned toward Richard, a shocked expression on my face, as I looked at the necklace and said, “Chard my old friend, it seems to me like the diamond in your necklace is fake.”

“That’s not possible! I have a certificate for it!”

“Oh really?” I chuckled as I said, “I invested in a precious gems business with my uncle when I was younger so I can tell whether a diamond is real or fake with a single glance. Just take a look at this horizontal line on the bottom of the box. It’s actually straight even though the light is refracted through the diamond. Just based on the principles of the refraction of light, you can tell that this diamond is fake. What did you major in when you were studying abroad? It can’t have been physics, right? If not, your common sense wouldn’t be so poor.”

Richard’s body shook and he looked rather embarrassed as he replied, “That’s not possible. If the refracted light is straight, then this…”

I grinned before I took the diamond out of the box. After that, I pointed inside the box and laughed as I said, “Oh, it really is real. It’s just that this line wasn’t straight in the first place.”

Richard wiped the sweat off his brow. “Thank god…”

But the fun just started. I touched the stone and my brows knit together as I spoke up yet again, “Oh drat! It looks like it’s still a fake after...