In most cases the answer is yes! What happens is the earing can get caught in the trap, unfortunately sometimes if there is enough water flow the earing can get pushed up and over the trap and into the sewer system, in which case it would be like finding a needle in a Hay stack! If you drop your earring down the sink, don’t use the sink or tip water down there. Then give your local licensed plumber a call or contact us at AJB Plumbing and we will be happy to help you out.