You may use different ways to tell if a gold piece is pure or not. These methods might not always provide accurate results. If you need a 100% final report about your jewelry, forward the item to a qualified jeweler.
Doing it on your own before you sell your jewelry to wholesale jewelers in Utah will ease and hasten the whole transaction. Here are some ways to do that:
Observe the jewelry for a formal stamp, which will show you the grade information. You can get the details in karat (1-24) or even finesse (1-999). If your jewelry’s class information is below 10k, it is a clear indication that it is not real gold. If your piece is quite old, you may not see an official stamp because wear and tear might have acted on the item.
Using a Magnet
Most metals used for gold plating or fake gold are magnetic, which is not the case with real gold. Magnets don’t attract 100% real gold pieces, and neither are non-magnetic metals pure gold. So, you still need to follow this test with others.
Using Ceramic Plate
Move the piece across an unglazed plate. Dragging will cause a scratching effect on your jewel, and if it is of pure gold, it will leave a clean streak on the ceramic plate upon scratching. Fake gold exposes a black streak.
You can use each of the methods discussed above to distinguish pure gold from a fake one. And while your deductions may not be a total guarantee or show you the karat weight or quality of your jewel, if you can ascertain that your jewelry is of pure gold, then you are one step closer to making the sale. Only a certified and trusted jeweler can help you get a 100% conclusive answer.