Paid over $1500 for this one ounce of 99.99 Perth Mint gold from APMEX in January 2020. Skeptical about its authenticity, I conducted a test to see whether this alleged one ounce of gold is truly diamagnetic. However, test results show that this bar of gold from APMEX isn't diamagnetic; in fact, it is attracted to earth magnets instead of repelled by them. Suspicious. What are your thoughts?