Your grandmother's crystal should sound like a bell. Getty Images You're rummaging through the cabinets at an estate sale, and you come across a set of 12 beautifully etched wine glasses. They're ...

The next time you're shopping at the thrift store, follow these tips to ensure you can differentiate between valuable crystal and cut glass.

It's also typically more expensive and valuable than cut glass objects, which is why you'll want to learn how to identify crystal.