14k White Gold Amethyst Jewelry: Two pieces marked, "J.E.C. & Co," for J.E. Caldwell & Co, Philadelphia & "14k", a large amethyst 4-leaf clover with center diamond and diamonds on stem with matching ring, approximate ring size 4 and a pair of screw back amethyst tear drop earrings, crown with 3 diamonds each, marked, "Krementz," and "14k", 20th century.