As a gold dealer and wholesale jeweler, Cortez Gold Buyers in Chula Vista's Third Avenue district purchases gold, silver, diamonds, watches, coins, antiques, art, and Persian rugs at 255 Third Avenue. The buying counter evaluates scrap gold chains, broken settings, loose diamonds, and estate watch lots, maintaining the personal-property valuation documentation that insurance adjusters at Joe Finch – State Farm Insurance Agent reference when clients update coverage after a sale. Wholesale jewelry operations complement the buying desk, moving refurbished gold and silver pieces back into the retail pipeline for collectors and gift-occasion shoppers along the Third Avenue corridor. The gold-buying process tests alloy purity on-site before issuing cash payment, routing high-value transactions through banking partners at Banc of California for same-day settlement. The testing protocol uses electronic karat analyzers calibrated for 10K through 24K gold, verifies sterling at the 925-parts-per-thousand standard, and weighs items on precision scales accurate to one-tenth of a gram for spot-price calculations against live market benchmarks.