I got a "grab bag" of vintage pearls and this bracelet is one item. It meets the "gritty teeth test." I checked google but I'm not sure about these. What are the round etching marks? Are they "real" pearls, and if so, what kind do they look like? They are HUGE. I researched the crystal beads and they sell online for $13 each. Thank you for any expertise from the hive mind.