I have seen them, but last year I bought a Lucoral brand strand marked "cultured pearls" on the Lucoral label, and "Freshwater pearls" on the T J Maxx label, which turned out to be imitations when I looked at them with a loupe and did the rubbing-together test. I returned them as I decided they were too heavy, even if they were a reasonable price for their size and appearance.
Two weeks ago at T J Maxx I saw another Lucoral strand. These were about 14mm, obviously imitations (not a very good coating) and marked $24.99. I asked to try them on, with no intention to buy, and the (young) salesgirl proceeded to tell me that they were "mother of pearl".
I explained to her that they were actually imitation pearls, very reasonably priced, which may have a shell bead inside under the coating, but that that didn't make them mother of pearl beads. I went on to explain a bit about mother of pearl, and about what Lucoral sells, but I could see from her expression that she was thinking, "I'll just keep quiet and tolerate this ignorant customer until she goes away" -- so I left!
Buyer beware at T. J. Maxx!
They are also selling real ripple type FWP (bead- nucleated), but they are poor quality with large bare spots, and not cheap.