An aquamarine, diamond, platinum and eighteen karat gold necklace the pendant suspending an emerald-cut aquamarine and a European-cut diamond, accented by a central plaque set with pear-shaped aquamarines and single-cut diamonds, completed by a link chain
GEMS Opal Necklace With Demantoid Garnet Accents. Necklace By Louis Comfort Tiffany. Black Opal From Australia's Lightening Ridge. Demantoid Garnet Accents From Russia. Janet Annenberg Hooker Hall Of Geology, Gems, And Minerals.