Here is a silver and turquoise pendant on a sterling chain with a lobster clasp. Only the chain is marked sterling but I imagine that the pendant is also. It measures 5/8" X 1/2" including the bail. The thickness of the pendant is 3/16" which is a tad under 1/4". The chain measures 18 1/2" and cannot be separated from the pendant because the loop is too big to go through the bail. Very nice condition.
Sterling Silver & Turquoise Pendant With Chain