Antique Amethyst Diamond Sunburst Disc Earrings

A pair of platinum over 18 karat yellow gold, amethyst and diamond earrings, circa 1900.  Each concave disc earring designed as a stylized sunburst set with approximately 95 rose cut diamonds and 21 channel set calibre cut amethysts, with post and friction back.  Diameter approximately 7/8 inch.  Gross weight approximately 7.40 grams.