These fire opal necklaces are stunning. They range anywhere from 19 to 20 inches based on the length of stone. Each one is one of a kind. They are listed numbers one through seven. Please refer to the picture from left to right and pick the number necklace that you like. If the necklace is available you’ll be able to purchase, if not that means it has already been purchased. The fire opal is a precious gemstone.