I really like the earrings. They not probably not expensive (received for free) but cute and simple.

The dark silver studs are beautiful and great for every occasion (from everyday casual look for elegant party).
The pearls are genuine (teeth test-gritty feeling), not super shiny which is good, and made me look and feel more feminine. I thought they would be my last favorite and I always thought that grandmas wear pearls, but this is nice surprise.
Last pair of studs with Swarovski zirconia didn't win my heart. Cristal is clear but of course lacks the diamond shine. But the real minus is that the crown that holds the zirconia is very high and studs are leaning to the sides once I had them on. I am pretty sure I won't wear them.

 They stay in the ears with no problems.