Fine Jewelry Identification: A Complete Guide

Fine jewelry identification comes down to two questions asked in order: what metal is this actually made of, and who made it — and getting the first question right matters more than almost anything else, since it’s the difference between jewelry with genuine intrinsic value…

Gold Jewelry Marks and Hallmarks: A Complete Guide

Reading the marks stamped into a piece of gold jewelry is the fastest, most reliable way to confirm genuine gold content, understand its purity, and distinguish solid gold from gold-filled or gold-plated pieces that only look similar at a glance. The Karat System American gold…

Sterling Silver Jewelry Marks: A Complete Guide

Sterling silver jewelry uses the same core purity standard and marks as sterling tableware, but jewelry brings its own maker’s mark conventions and a few jewelry-specific complications worth understanding separately. The Same 92.5% Standard Sterling silver jewelry is 92.5% pure silver, marked “STERLING” or “925”…

Platinum vs. White Gold: How to Tell Them Apart

Platinum and white gold look similar enough to the untrained eye that they’re genuinely easy to confuse, but they’re fundamentally different metals with different marks, different weight, and different long-term care requirements. What White Gold Actually Is White gold is actually gold — naturally yellow…

Gold Jewelry Fakes and Alterations: What to Watch For

Because genuine gold carries real melt value tied to the gold market, a handful of specific deceptions show up repeatedly in this hobby — worth understanding clearly before making any purchase where the price assumes confirmed solid gold content. Fake Karat Stamps The most financially…

Vintage Costume Jewelry Identification: A Complete Guide

Costume jewelry uses non-precious materials — base metals, glass rhinestones, early plastics, enamel — to imitate the look of fine jewelry at a fraction of the price, and identifying genuine, well-made vintage pieces comes down to construction quality, signatures, and materials rather than any metal…

Costume Jewelry Marks and Signatures: A Complete Guide

Whether a piece of costume jewelry is signed or unsigned is one of the single biggest factors in how easy it is to research and, often, how much it’s worth — an attributed piece from a recognized maker draws meaningfully more collector interest than an…

Most Valuable Vintage Costume Jewelry

Despite having no melt value at all, top-tier vintage costume jewelry can command genuinely serious money — understanding what makes these specific pieces exceptional helps calibrate expectations for everything else in a collection. Miriam Haskell’s Hand-Wired Construction Miriam Haskell pieces are prized specifically for their…

Costume Jewelry vs. Fine Jewelry: How Value Really Differs

The fundamental difference between costume and fine jewelry value isn’t just about materials — it’s about what actually sets the price floor, and understanding that difference changes how you should think about value in each category. Fine Jewelry Has a Value Floor Genuine gold, silver,…

Trifari Jewelry: A Collector’s Guide

Trifari is one of the most recognized names in American costume jewelry, founded by Gustavo Trifari and later joined by Leo Krussman and Carl Fishel, and its reputation for genuine design sophistication set it apart from most of its mass-market competitors. The Crown Mark Trifari’s…