VINTAGE Large Oval Onyx Gold Plated Cocktail Statement Ring Size 8.25 MCM

Vintage MCM large statement ring. Genuine onyx oval set in what appears to be gold plating (untested). Measures about 8.25. Oval measures about 1.25" long. Purchased from an estate collection and has a markers mark inside that I cannot make out. Some very light wear on bottom of band from normal use. Excellent condition besides and smoke-free home.