Beach theme style is at its best in our whale tail nautical necklace pendant. Rhodium plated for high shine and tarnish resistance, our .925 Sterling Silver blue opal inlay whale tail pendant necklace is whimsical and fun. With an adjustable 16 to 18in chain, this piece of nautical jewelry is perfect as a gift for a loved one born in October, since blue opal is October birthstone jewelry. Make this nautical animal pendant necklace a part of your jewelry box today.