Yellow Gold and Gem Stone Jewelry A - Marked, "14K" "FIC," natural cut amethyst, 9 x 7mm approximately, having medium color purple color, four prong basket setting, missing backs. B - Marked "10K," 'Mystic," topaz stud earrings with six point prong setting, 9mm across approximately, table to point approximately 6.8mm. C - Marked "10K," heart onyx ring with four prong setting, onyx inset with white gold heart with tiny diamond, prong setting.