sorry for delay in responding, we have been very busy, providing free opinions.
Good for you Carol! THREE pieces! A hat trick! Your jewelry set sounds absolutely beautiful. We have to assume, the Jewelry set is antique or estate jewelry because if mere male purchased the jewelry new for you, surely he would have been provided with information, written or verbal, at time of purchase, concerning the maker?
Having some idea about the age of this jewelry, will help us know in which direction to research the mark.