Pair of earrings with 4 old-cut diamonds and 2 brilliant-cut diamonds

Pair of earrings with 2 pearls, exchangeable, 4 old-european-cut diamonds and 2 brilliant-cut diamonds totalling ca. 0,82 ct, ca. WHITE- TW (H-K)/VS-P, pear shaped, white-silver-grey cultured pearls, with beautiful luster, naturale signs of growth, dimensions : ca. 15,5 x 12 mm, yellow gold 18K, faceside silver, 9,8 g, total. L: ca. 36,9 mm, 20th/21st. century, minor signs of wear.