Gold jewelry marked "750" or "18k" indicates a blended metal consisting of 75% gold and 25% other alloys or elements. Likewise, a "585" or "14k" imprint indicates a gold content equal to 58.5% of ...

SEE ALSO: Rare 14K gold Bionicle LEGO sells for $18K at auction "We didn't know it was worth anything until people started asking if they could buy it for $1,000," he said. "One of a kind." ...