This is a very good critique of your experience and interpretation of Vicalla's eBay auction lots and their corresponding advertising copy.
Just to balance the discussion,there are few good pearl sellers on eBay that I know of. For loose beads and finished designs, several people have already given unsolicited positive commendations about Drusy Designs' Care Ehret. Care uses Ebay effciently as a distribution device for her wares. She has a following. She is not cheap, but she is fair to all, especially her sources. She has mostly baroque pearls combined with 22K (

) gold findings. She gets Sea of Cortez pearls, too.
You are more likely to find good sources for CFWP strands & findings on eBay than for finished strands. My rule of thumb is that it is an illusion that you are paying really low prices on eBay. You mostly end up paying average to high prices on eBay for what you get.
With thast said, Pearl Emporium carries a wide aray of pearls as does Integrity pearls. Both have a family buyer perched in the Philippines who launch off to China frequently for the latest in commercial quality pearls.
I am sure there are more, but I am no longer looking at pearls on eBay.
I have trouble with eBay for pearls myself. I have a set of filters in place to exclude many words but it still isn't good enough to catch all the bad copy. I look every day for a new eBay search engine or eBay search client but have not found one better than eBay's own search, yet.
If anyone uses a good Ebay search engine, post it in a new thread in the Pearl resources forum.