The pair of earrings are for pierced ears. They do not have a metal mark but were tested with nitric acid and a gold tester to be 18k solid gold. Together they weigh 5.0 grams. Each measures 5/8" x 7/16".  Each holds a oval red natural coral. They measure 12.5 mm x 8.0 mm.  Each earring holds 8 round small natural diamonds and are in nice condition.