I have only had these earrings for a short time so cannot attest to their durability, but they are as claimed - sterling silver with a matched set of pearls that look more like cultured than freshwater, very round and symmetrical.  My only complaint is that they do not have much room to clip them on and have to sit right at the bottom of the lobe and also there is no room to attach even my thinnest pads or they fall off, but they don't seem uncomfortable without pads.  Not recommended for anyone with large earlobes!  I think they are an amazing buy for the price.  I received them very fast using standard shipping and they were packaged well protected.