Hi, would love anyone expert with etched carnelian beads to let me know their thoughts on these. Do you believe these are authentic? I've bought many but it was 20 years ago when there were fewer copies & reproductions on the market, & were the simpler smaller beads that I was certain were old. I've not seen beads similar to some of these & would love your thoughts as I'm considering purchasing. Thank you so much for your help! 2nd closer shot below the 1st. Lynne