Amethyst Tassel Pendant Necklace. Rustic Amethyst chunks are polished with a beautiful sheen, yet their rugged origins are preserved on this long 50 inches (overall) necklace. The flat oval shaped Amethyst pendant measures 2 inches long by 1 inch wide, with a 3 inches long sliver tone chain tassel. Black satin cord connects all the pieces to make a glamorous yet casual necklace suitable for tunics or turtlenecks.