A belle époque aquamarine and diamond ring, circa 1910. Set with a rectangular-cut aquamarine, within a scrolling openwork old-cut diamond gallery and shoulders; aquamarine weighing approximately: 19.60 carats; estimated total diamond weight: 1.20 carats; mounted in platinum; size 6. Via Bonhams.
DIAMOND AND COLORED DIAMOND TIARA, CIRCA 1910. Old European-cut, single-cut and rose-cut diamonds weighing approximately 6.50 carats, old European-cut and old mine colored diamonds weighing approximately 3.25 carats, mounted in gold and platinum.
A pair of amethyst, onyx and diamond earrings each of geometric design, suspending a line of old European-cut diamonds with rectangular-cut amethyst and calibré-cut onyx terminals; estimated total amethyst weight: 18.20 carats; estimated total diamond weight: 2.70 carats; mounted in eighteen karat gold. Art Deco or Art Deco style.
1920's Platinum, Diamond & 18k Gold Ribbon Bow Ring Size US 6