Lovely antique Edwardian gold pendant is set with a light  blue diamond shaped glass stone in a small yet ornate triangle open plaque with etched waves and embellishments.  The bottom has an additional leaf decoration with a granulated texture.  The setting hangs from a bail and an elongated open-work gold connector.  The pendant, over 100 years old, is gold topped and tests positive for 14k gold.  It comes with a complimentary 17 ½ inch gold vermeil replacement chain.

A full view:

View of the back of the pendant: