This is a vintage Coro choker and earring demi set from the 1956 Coro collection called "Moonray".  15 square plastic cabochons glow like moonstone in this pretty necklace that is a shade in between white and a pale shade of blue.  It is joined together in links of shiny silver tone making it very sturdy and flexible.  It has a hook closure and additional links ending in a silver ball.  The stones measure 11 1/4" with an additional 6 1/4" of chain.  The earrings are clip-ons measuring 1” by 3/4”.  Both are in excellent condition.