Sardonyx and pearls necklace. Polished oval nuggets of sardonyx and creamy ivory cultured freshwater pearl buttons create an elegant look for fall. Accents of sterling silver in twisted long and short chain, beadcaps, spacers and handmade beads from Bali. A cluster of pearls dangles on the extender chain. This measures 19 to 20 inches and finishes with a sterling silver hook clasp.