An enamel, coral 'corallium rubrum' and diamond necklace, Victorian

An enamel, coral 'corallium rubrum' and diamond necklace, Victorian
Set with three graduated oval pendants to the front of the necklace, each set with 'corralium rubrum' coral polished cabochons, rose-cut diamonds and applied with opaque light blue enamel within ornate borders, to a curb-link chain, length approximately 42cm, central pendant with glazed compartment to reverse, the remaining two with closed-back settings