Band ring with emerald, ruby, sapphire and 2 diamonds

Band ring with emerald, ruby, sapphire and 2 brilliant-cut diamonds totalling approx. 0.14 ct, WHITE (H)/VS, oval-cut gemstones, emerald approx. 0.15 ct, ruby ​​and sapphire each approx. 0.25 ct , 18K yellow gold, 7.7 g, ring size: 54, W: approx. 4.1 - 7.1 mm, late 20th century, signs of wear. Handcrafted work.