Pair of stud earrings with 12 old-cut diamonds

Pair of ear clip studs with 12 old-european-cut diamonds totalling ca. 0.67 ct, of which 2 diamonds each are ca. 0.20 ct, ca. WHITE (H)/SI-P, some with notches and chipped, 14K white gold, 8.9 g, polished/satin finished, L: ca. 29.7 mm, W: ca. 1.4 - 11.9 mm, 2nd half of the 20th century, good condition for its age, with hallmark.