VINTAGE VERY LONG GLASS BEADED NECKLACE W/ LARGE GREEN DIAMOND CUT STONE

ONE HECK OF A UNIQUE GLASS BEADED LONG NECKLACE. THESE ARE NOT PLASTIC, THEY ARE GREEN BROWN W/ SWIRLS, AND AMBER COLOR GLASS. THE STONE IS A SOLID GREEN AVOCADO COLOR. IT IT IS CUT IN A DIAMOND TYPE OF WAY. IT CAN BE WORN AS A SINGLE STRAND OR THERE IS A CATCH IN THE MIDDLE OF THE NECKLACE FOR YOU TO WEAR IT DOUBLE STRANDED. JUST A GORGEOUS PIECE. WISH I KNEW WHAT KIND OF STONE THAT IS, IF YOU KNOW PLEASE EDUCATE ME, ID APPRECIATE IT.