Two necklaces in one game

Finally got two necklaces in a single game! Although they were both 600k (after appraisal, one was 500k and the other 1mil. I rerolled the 500k one twice and its value didn't change, but I think it looks uglier now), and it seems both came from purple chests. Played with my friend for about an hour and a half yesterday? Got a total of five necklaces. My friend got three more later on, so it was the luckiest session I've had.