The cute blonde guy is a jewelry detective.
The premise seems so unbelievably dumb but the episode wasn’t bad. Not good enough that I’m planning to watch the rest, but it kept my interest for twenty minutes. It is overly sentimental but at least asked interesting questions.
I’m guessing this will be a mystery of the week type show though, so no idea how the rest will hold up. Presumably the jeweler will be revealed to have some kind of flaw and then they’ll make out. At least that would be the ideal direction.