I'd draw the line at wedding rings or engagement rings.
Other than that, the key is the symbolism. Does she just think it's a necklace, or does she think it's a reminder of the deep and abiding love she once had for Percival or Chauncey or whatever his name is?
CBS is a stupid network that made me miss half of the first quarter because they're greedy morons. I hope CBS goes bankrupt and ends up homeless.