Solitaire ring with brilliant-cut diamond of approx. 0.69 ct (hallmarked),

Solitaire ring with brilliant-cut diamond ca. 0.69 ct (marked), current replacement value (2024): ca. 5,000 €, ca. RW (G)/VS2, 14K yellow gold, 8.7 g, ring size 60 (with signs of enlargement), 2nd half of 20th century, minor signs of wear.