Bangle with 5 rubies, 6 sapphires, 5 emeralds and 7 diamonds

Bangle with 5 rubies, 6 sapphires, 5 emeralds and 7 brilliant-cut diamonds, totalling approx. 0.56 ct, WHITE (H)/VS, rubies, totalling ca. 0.91 ct, sapphires, totalling ca. 1.90 ct, emeralds, totalling ca. 0.99 ct, 3 stones chipped, 18K yellow gold, 77 g, surface with fine engraving, inner circumference: approx. 17.5 cm, W: approx. 3 cm, end of the 20th century, minor signs of wear, with hallmark, handcrafted work.