This necklace gets four stars because it is a little shorter than 18" and clasp is ok but not great. Freshwater pearls are not perfectly round and these are no exception, but it's hard to tell once the necklace is on. There are a few imperfections and scratches, but most of the pearls are in good condition. The size is great and I am happy with my purchase. I will be wearing this necklace a lot.