Antique Garnet, Pearl & Enamel Locket

Measuring approx. 1 1/8 x 3/4 inch, centering a round faceted garnet measuring approx. 6.3mm, framed by twelve half pearls measuring approx. 2.2mm, embellished with black enamel, and engraved surface. Fashioned in 18k yellow gold, with French eagle head hallmark. On a curb link chain measuring approx. 16 inch, fashioned in 18k yellow gold.