For watches, we verify serial numbers, reference numbers, movement calibers, dial fonts, lume application, case back engravings, and bracelet clasp codes against known production records. For jewelry, we inspect hallmarks, maker stamps, construction techniques, stone setting methods, and alloy composition. For designer handbags, we examine heat stamps, date codes, stitching patterns, hardware finish, leather grain, and house-specific details that evolve by production year.
This level of verification protects both buyer and seller. When we issue an offer or advance, it is backed by physical confirmation—not assumptions. Clients from Deerfield Beach, Boca Raton, Fort Lauderdale, Miami, and across South Florida trust Goldmine Exchange because we document what we find.