Natural black fire opal gemstone necklace. Very nice quality stones. It is really hard to capture all the fiery iridescent flash in these stones on camera. 14k yellow gold filled chain and clasp. Size is 18 to 19 inches. Gems are 3.5 mm gemstones, flashes of pink, blue, green, red and yellow in lighting, very nice quality. Wear alone, jumble with other necklaces or add a pendant for a unique look. Over 20 carats. Shipping is Free!