I've seen a variety of Tahitians from a lot of different sellers including the L.A. jewelry district (over-all not good), gem shows (depends), Jeremy's vault (awesome), Josh's treasure trove. I've seen a lot of different blemishing and circles, pits etc. some don't bother me, and some are clearly indicative of illegal imports, but I buy or pass on pearls based on my own gut. I personally would pass on these based on these pics, if I were buying them as a strand unless the price was super good, and I was looking for project pearls. You can PM me if you want a price point I think is reasonable, but it is subjective base just on the shots. If you have this many questions and are planning on these being a strand for yourself, I'd send them back. You'll never get past the doubts.