Synthetic emerald CZ sterling silver cocktail ring size 9

This ring is from an estate purchase in like new condition with the exception of some light surface scratches on the top of one of the stones as shown in photos. Priced lower to compensate.  Green gemstones test as glass and white stones test closer to cubic zirconia. I’m assuming these are a synthetic emerald or could possibly be something else but selling as synthetic / glass/ cz / man made. Prong set in authentic 925 sterling silver that’s likely plated with rhodium. China. Unknown hallmark. Reasonable offers considered