5 ways to spot a fake diamond

Stefan Wermuth/Reuters One of the most common questions that gemologists are asked is how to tell the difference between a real diamond and a fake stone. We spoke with Reyne Hirsch, a 20th-century decorative arts expertandconsultant for theglobal online marketplace Lofty, about how to tell when a diamond is real, and when and why to take it to an expert. Whether it's with jewelry you inherited or something you found at a garage sale, it's easy todo a few simple DIY tests.That necklace you think ...