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AI Cataloging for Jewelry

Jewelry is the highest-liability category in estate auctions. A single misidentified stone or overstated karat claim can expose you to legal action. Gavelist uses identify-first protocol — describing what is visually observable while flagging items that need professional testing. You get sale-ready descriptions that protect you legally while still attracting informed bidders.

Avg. lots per estate: 10-30Cost: $0.15/lot

Last updated: April 2026

Why Jewelry Cataloging Is Challenging

  • Distinguishing genuine gemstones from synthetics, simulants, or glass requires testing equipment photos cannot replace
  • Hallmarks and karat stamps are often worn, requiring magnified photography to read
  • Costume jewelry from Trifari, Miriam Haskell, or Eisenberg can exceed the value of unmarked gold pieces
  • Estate lots often mix fine and costume pieces — each needs different descriptive treatment
  • Weight and stone measurements cannot be determined from photos alone

What Gavelist Identifies from Photos

  • Metal color and likely composition — yellow gold tone, white gold/platinum tone, sterling indicators
  • Hallmark and maker mark identification — 14K, 925, maker stamps from major houses
  • Setting styles — prong, bezel, channel, pave, tension — with era indicators
  • Stone identification with appropriate hedging — 'appears to be' for untested stones
  • Designer and brand signatures — Tiffany, David Yurman, Pandora, Georg Jensen
  • Period classification — Art Nouveau, Art Deco, Retro, Mid-Century

Common Jewelry in Estate Auctions

Diamond engagement and wedding rings
Gold chains, bracelets, and bangles
Sterling silver flatware and serving pieces
Costume jewelry collections and brooches
Watches — Seiko, Bulova, Omega, Rolex
Pearl strands and earring sets
Estate gemstone rings — ruby, sapphire, emerald

Photography Tips for Better AI Results

  1. 1Use macro mode and photograph hallmarks with a loupe or magnifying glass for readability
  2. 2Shoot against a plain dark background — black velvet eliminates distracting reflections
  3. 3Include a ruler or coin for scale, especially for rings and pendants
  4. 4Photograph clasps and closures — they often carry maker marks and indicate era

Try AI cataloging for jewelry

$0.15 per lot, no monthly commitment. Upload jewelry photos and get descriptions in seconds. Or call Ben at (412) 580-7398