Shop › Pebble Moonstone Necklace Image 1 of 5 Image 2 of 5 Image 3 of 5 Image 4 of 5 Image 5 of 5 Pebble Moonstone Necklace £360.00 Pebble moonstone beads with flashes of colour stung on silk and fastens with a gold 9ct clasp. This is 15 inches long. Add To Cart Added! Pebble moonstone beads with flashes of colour stung on silk and fastens with a gold 9ct clasp. This is 15 inches long.