Brooch/pendant with amethyst,

Brooch/Pendant with round step cut amethyst, D: ca. 14 mm, 2 brilliant cut diamonds, totalling ca. 0.06 ct, good colour and clarity, 18K yellow and white gold, 13.2 g, D: ca. 35.5 mm, hanger loop turnable, slide lock, mid 20th century, minimal signs of wear.