JewelSnap — Best overall
Best for: inheritance sorting, vintage and antique jewelry, international hallmark decoding, estate-sale due diligence, eBay and Poshmark resellers needing PDF appraisal reports.
JewelSnap leads on three features no competitor matches: era dating across nine historical periods (Georgian through Contemporary), hallmark decoding for over 50 countries (not just US/UK/EU), and Interpol-backed stolen-property cross-check on every scan. It also offers the only PDF appraisal report export in the category, and the lowest annual subscription cost ($29.99/year). 4.81 stars · 63 ratings · $4.99/wk or $29.99/yr · 3 free scans · iOS 17+.
Where it loses: smaller review base than 2-year-older competitors (63 ratings vs 200+), requires iOS 17 minimum, and English-only at launch (localization rolling out). If you have an older iPhone or need a non-English interface today, look further down this list.
What users praise: "Era identification was spot-on for my grandmother's Art Deco pieces." "Saved me $2,000 in unnecessary appraisals." "The Interpol check caught a piece my dealer didn't disclose was reported stolen."