A BEAUTIFUL WOMENS ESTATE STERLING SILVER MODERNIST BUTTERFLY OPAL NECKLACE. NOT SURE IF STONE IS NATURAL OR MAN MADE. THE NECKLACE MEASURES 18" LONG, AND WEIGHS 8.9g. THE WIDTH IS 1/2". WOULD MAKE A GREAT GIFT FOR THAT SPECIAL SOMEONE. ANY QUESTIONS PLEASE DO NOT HESITATE TO ASK. BE SURE TO CHECK OUT SOME OF MY OTHER GREAT ITEMS UP FOR SALE. THANK YOU.