Whether you're buying a gold jewelry piece or inheriting one, these proven tips from seasoned jewelers can help you confirm its authenticity. In today's market, distinguishing genuine gold from gold-plated imitations often requires an expert eye—and the difference can be thousands of dollars. From hallmarks to simple home tests, here's how professionals spot the real deal.
The hallmark is the most reliable initial indicator. Precious metals like gold must be stamped with a hallmark—a small engraved mark indicating the gold's purity percentage. It typically appears as a diamond shape containing a number (e.g., 750 for 18K). Other common symbols include an eagle head for 18K, a shell for 14K, or a clover for 9K. Note: Vintage pieces reworked by jewelers may lack hallmarks, so combine this with other tests before deciding.
True gold has a rich, consistent yellow hue—overly brassy tones often signal gold plating. Real gold jewelry also feels noticeably heavier than plated versions due to its density.
One of the simplest methods: Hold a strong magnet near your jewelry. Pure gold is non-magnetic and won't be attracted. If it sticks, it's definitely not real gold—applicable to necklaces, bracelets, rings, or earrings.
Fill a bowl with household bleach and soak the jewelry for a full day. Real gold resists oxidation and shows no discoloration; any darkening or tarnish confirms it's fake.
Grab an unglazed ceramic tile (backs of plates work). Rub the jewelry firmly across it. A black streak indicates base metals—real gold leaves no mark.
Use a jeweler's polishing cloth (available at fine jewelry stores). Buff the piece: Real gold polishes to a brighter shine without color loss, while fakes fade or smear.