This is really one of the most beautiful bead necklaces I have ever found. The beads are bright foiled blues. The smallest oval bead is approx. 6mm, and the largest bead is approx. 15mm oval. The clasp is a simple 14K gold jump ring. Length is 15 1/2" including the clasp. Each bead has a blue silk knot between the next bead. Condition is excellent. The foil and the color of these beads would "make" any outfit terrific. I would date these beads at c1930's.