What is how to tell if gold is real?

Here's some information on how to tell if gold is real:

• Visual Inspection:

  • Hallmarks/Stamps: Look for stamps like "10K," "14K," "18K," "24K," "999," or "Fine Gold." These indicate the gold's purity. A lack of a stamp is suspicious but not definitive proof it's fake. See more about hallmarks and stamps.
  • Discoloration: Real gold won't tarnish or rust. Check for discoloration, especially in areas that experience a lot of friction (like edges or clasps). If the gold is wearing off to reveal a different metal underneath, it's likely plated.

• Physical Tests:

  • Magnet Test: Gold is not magnetic. If a strong magnet attracts the item, it's not real gold (or it has other magnetic metals in it). Note that some fake gold items use non-magnetic metals that still aren't gold. See more about the magnet test.
  • Density Test: Gold is very dense. You can measure the weight and volume of the item and calculate its density. Compare this to the known density of gold (around 19.3 g/cm³ for pure gold). This requires accurate measurements and is best for larger items. See more about the density test.
  • Scratch Test (Acid Test): Use a testing kit that includes testing acids and a testing stone. Rub the gold item on the stone to leave a residue, then apply different acids to the residue. The reaction (or lack thereof) will indicate the gold's purity. Caution: This can damage the item, so use it as a last resort and only on an inconspicuous area. See more about the scratch test.

• Professional Evaluation:

  • Consult a Jeweler: A professional jeweler has the tools and expertise to accurately assess the gold's purity and authenticity. They can perform tests like X-ray fluorescence (XRF) analysis, which is non-destructive and highly accurate. See more about consulting a jeweler.