How To Find VINTAGE JEWELRY On Ebay watch for expert SECRETS

The seller is mightymousegems and is located in Concord, Michigan. Im not sure if it could have possibly had a pin stem on at one time, I cant really tell, but now its a drop. Antique art nouveau 14k heart drop/pendant/charm, pave pearls with diamonds measures to 3/4 tall by 3/4 wide and weights are 5.7 grams.