Found in a box full of mixed items, here's a single ORPHAN earring composted of sterling silver and featuring a 5mm cultured pearl at the top and a mottled dark green bit of jade (or possibly green agate - I have no way of knowing for sure), teardrop shaped, at the bottom. Screwback mechanism.
Length of the earring is 1"; width of the teardrop is 5/16". Weight of the piece is 1.4 grams.
No hallmark that I can spot - the metal was gently acid tested for content.
Leave as is and wear "pirate fashion' or convert into a pendant!