Turquoise Necklace for Spring and Summer

This is a striking retro costume jewelry necklace in a V-shaped beaded design. Features 9 3/4” half beads with 13 smaller round beads attached to the half beads. Sea foam green colored. Necklace is 20” long including clasp and extra chain extension. Beaded area is 4.5” wide and 3.5” long. In good vintage condition. The gold tone is discolored in places as is typical with vintage jewelry. All beads are intact and secure. No missing pieces. I don’t know in what decade this necklace was made. There are no markings that I can see.