They could be akoyas or they could be imitations-- I can't tell because the first few photos are out of focus. Please take better photos of the entire strand and a few more close-ups, including close ups of any flaws you see in the surface of the pearls. If there are any areas where the pearly coating seems to be missing, photograph that as well.
Also, please check the tongue of the clasp and see if there are any metal marks (10K, 14K, 925 etc.)
A jeweler could tell you if the stones are rhinestones (glass) or diamonds. I would not expect diamonds in the clasp of an imitation strand (even though clasps can be changed.)