I subscribed to Polygon.net to sell my diamonds online. as they promised, my subscription was supposed to be month to month and after paying them for 3 months and not being able to sell my goods, I decided to cancel. They claimed when I signed up, it was a 12 month contract and they said if I don’t pay the balance, they will report me to JBT, Jewelers Board of Trade. don’t join and if you do, read the fine print. You are not able to sell anything anyways because they have more suppliers than buyers. never again I get fooled by polygon. read full review »