A necklace made of polished blue stones. Looks like a blue marble, but not sure of the type of stone. Polished up, the stone beads are a lovely color of blue and downs. The sterling silver clasp is marked 925 China. From an estate of jewelry where most was never worn and only admired. No issue. I shoot pictures in natural light so the colors are true to form. The pretty blue necklace is 18 inches long.