Eight plain-English guides to working out what your gold is, what its stamps mean, and what it is actually worth. Written to be useful whether or not you ever install the app.
Wondering if your gold is real? Here are 8 ways to check it, from hallmark and magnet to acid and XRF, plus what each test actually proves.
Read the guide →A complete guide to gold hallmarks: 999, 916, 750, 585, 375 and country assay marks explained, plus how to spot plating and forged stamps.
Read the guide →How the karat scale works, what 24K, 22K, 18K, 14K and 9K really mean, how to read karat off a stamp, and how karat changes the value of your gold.
Read the guide →The formula gold dealers use to value jewelry: weight times purity times spot price. Worked examples in grams, tola and ounces.
Read the guide →How to photograph gold jewelry, coins, bars and nuggets so an AI identifier gives its best result: lighting, background and framing.
Read the guide →916 means 91.6% pure gold, or 22 karat. Where the number comes from, why it dominates Indian and Gulf jewelry, and how to spot a fake stamp.
Read the guide →Brass and gold-plated jewelry fool people daily. The visual, physical and chemical differences that separate solid gold from the imitations.
Read the guide →Identify Krugerrands, Sovereigns, Eagles and Maples, tell minted bars from cast, read assay cards and spot counterfeits by weight and size.
Read the guide →
Gold Identifier