How to tell if your jewelry is real gold or gold-plated (and why it matters more than you think)

You’re standing over your dresser, holding a necklace your aunt gave you in 1997. It looks gold. It feels heavy enough. But is it actually gold, or is it a $4 chain with a thin yellow coating? This question matters a lot more now than it did five years ago. Gold is trading around $4,300 […]