BEADED Dolphin 🐬 Necklace, NWT blue beads, Silver (Plate?) Hollow Dolphin HH

NWT Beaded Dolphin 🐬 Necklace Purchased in Hilton Head… 🌴 ☀️ Silver dolphin is almost 2 inches long, it is hollow, I polished it so it does tarnish, leads me to believe it is silver plate perhaps…? Blue-ish beads mostly, with a few accent colors added. Sterling Silver hook and eye clasp. 17” Long