But why was there only a little bit of temperature in a part of it? A thumb ring had two values? Vivian was confused.
Vivian looked at it for a while, and then looked up at Fred. "Mr. Fred, I'd like to borrow your magnifying glass."
Fred got up to get the tools. "No problem."
With a magnifying glass, Vivian could clearly see two cracks on the ring, but they were not obvious, as if they had been accidentally hit.
Vivian touched the crack with her fingers and had a bold guess.
When she looked up again, Vivian looked at Fred and said with certainty, "Mr. Fred, this is a synthetic product. It's a ring made from the combination of ancient and new Jade."
Shock flashed in Fred's eyes. "How did you know?"