This is a Vintage Sorrelli Maltese Cross Pendant. a beautiful pendant. Great piece to gift to someone special. 
 
Central Focal Point: It features a round, honey-amber or mother-of-pearl cabochon at the center, framed by a halo of small lavender crystal rhinestones.
Maltese Structure: The four primary arms are shaped like teardrop or pear medallions, filled with textured, beige-peach enamel inserts and accented by small flower-shaped clusters of deep purple crystals with red centers.
Filigree Details: Intricate antiqued metal filigree bridges the spaces between the main cross arms, decorated with multi-shaded pink and lavender rhinestones.
Bail: A textured metal loop or bail extends from the left side, indicating it is designed to be worn horizontally as a statement pendant or converted into a pin/brooch.
Measurements:  1 1/2" x 1"
Stamp: Star

Please view photos for details.