"This necklace is vibrant and eye catching. These settings are made to look like leaves and vines, and the 18mm stone is a glass ocean blue opal, a one of a kind stone. Light catches flecks and swirls of gold, deep blue, and sky blue, much like the colors in Van Gogh's Starry Night. The chain is sterling silver plated in a beautifully textured design. Chain may vary according to stock, but will be same quality and color. The loops for the lobster clasp are hand-forged and sterling silver plated