Six Cross Pendants, 19th - Early 20th Century

1st set with square-cut amethyst, with rose-cut diamond terminals, circa 1910; 2nd set with brilliant-cut diamonds, accented by calibre-cut sapphires, circa 1910; 3rd set with vari-cut topaz, 19th century; 4th set with old cushion-cut diamonds, 19th century; 5th set with old brilliant- and brilliant-cut diamonds, with French assay mark for platinum, early 20th century; 6th decorated with blue enamel, with old cushion-cut diamonds in closed back settings, early 19th century.