Art Deco Inspired Filigree Amethyst Geode Necklace

Amethyst geode clusters:  4 x 8mm, 4 x 12mm and 4 x 6nn

Filigrees:  5/8 x 1 1/2 and 3/4 x 1 5/8 inches

16 inch copper chain with 3 inch extender