HOT ! Vintage Sterling Silver Guilloché Enamel & Rhinestone Lavalier

Silver Guilloché Lavalier Necklace- marked 925 on back of pendant- constructed of solid sterling silver with rhinestones and purple enamel- necklace consists of pendant attached directly onto chain- a purple guilloché enamel centre is surrounded by a halo of rhinestones (2 stones have darkened) which suspends from 3 articulated rhinestone links- pendant portion is 2.7 cm long x 1.1 cm wide- rhinestone drop portion has open back, while pendant is closed back- necklace is 17.5\" in total- old style of spring ring sticks a little bit when opened, but closes and stays closed- great vintage condition; I am unsure of the age of this piece because while it has old rhinestones, enamelling and spring ring, it has a new 925 mark- box pictured is not included with purchase