Antique Silver Plated Coral Reef Necklace Statement Jewelry Large Bold Miniature Coral Reef Necklace sculpted from polymer clay. Flickr TUTORIAL Coral Reef Necklace Etsy Necklace etsy, Beading Chunky Turquoise Coral Reef Necklace Beach Inspired Jewelry Beach Ravelry: Coral Reef Necklace pattern by Ira Rott. Material . 925 Solid Sterling Silver Material Origin high quality material sourced in the U. S. Chain options are 16, 18 or 20 inch, 18 being standard. Please keep in mind that each piece is unique and may have slight variations.