GOLD TESTING PROCEDURES 

• No precious metal is magnetic.

• We use 10k, 14k, 18k, 22k nitric acid on a scratch test.

• If the scratch stays the same color, no change, as the acid used, it is that karat of gold.

• If the scratch turns brownish, it's a lessor karat than the acid used to test it.

• If the scratch disappears, it is not gold.

• In some cases, especially heavy items, we will file into the item and put acid directly on the item.

• If the acid stays clear, it's good.  If it turns bubble green or blue, it is plated.

• Silver Testing: 18k acid will turn the silver scratch into a bright blue color