If you are in the state of confusion of where to sell platinum jewelry then you can choose the national mail in company but there are some problems associated with it like there is a chance of losing the jewelry by mail, you cannot view the testing of the jewelry and the transactions might get delay at least for a month. The next option for selling the platinum jewelry is to the pawn shop but they do not provide the money for quality and often people will opt for this when in need of the urgent money. You can choose the cash 4 gold services online but it is difficult to find the genuine website online. The platinum value increase or decreases depending on the stock value. Platinum is one of the most luxurious metals and they come in many forms like coins, platinum bars, jewelry and platinum bullion. If you have platinum coins then you can directly sell it to the dealer and make the transaction easily without any intermediate person. You can place the metal in the coin shows where there are many chances for the investors and the platinum merchants to have a glance at them.