Fabulous emerald, 1.71ct, flanked by 2 old cut diamonds, 1.25cts, platinum and 18ct yellow gold

5ct rectangular aquamarine to tapering diamond set shoulders, 14ct white gold, circa 1930

beautifully cut aquamarine, 0.94ct, diamond set shoulders, 0.06ct, Victorian style 18ct yellow gold mount

oval faceted aquamarine, 2.22ct, within a border of old cut diamonds, 1.06ct, platinum set, 18ct yellow gold mount and shank