Ring with cultured pearl, 3 old-cut diamonds and 15 diamond roses,

Ring with cultured pearl, 3 old-european-cut diamonds and 15 rose-cut diamonds, totalling ca. 0.68 ct, ca. WHITE (H)/SI, cultured pearl D: ca. 3.8 mm, 14K yellow gold, 4 g, faceside platinum, ring size: 52, W: ca. 2.9 -11.5 mm, mid-20th century, good condition for its age, with hallmark, handcrafted work.