I would recommend taking the Pearls as One course and learning as much about pearls (and coral which is not covered in this course) as you can. Study pictures and read about characteristics between the different pearl types and coral. You'll learn to recognize fakes and poor quality through photos. Don't believe everything sellers tell you online unless it is a reputable pearl company. Many, and I repeat, many jewelry stores don't have a clue about pearls, and there are so many mistakes on them and coral it is a joke. I see appraisals that are incorrect, so don't trust those either. Before you buy, you have to know what to look for, what good price to pay is, and what to do with your purchase. The more you know, the more you'll realize you need to learn. It isn't easy to start, but a place like Etsy might be a good start to sell your jewelry and get ideas. The only time I trust what I read is if the pearl is identified as a freshwater pearl.