This "Y" style necklace features pink amethyst gemstones, freshwater pearls and repurposed Art Deco jewelry.
First, there are five strands of 2.5mm pink amethyst faceted rounds that are approximately 54" to 56" in length. The strands are finished with freshwater pearls and wire wrapped, pink amethyst faceted pear shape briolettes. 
The length of the strands have been doubled around a repurposed, vintage Art Deco, Knoll and Pregizer brooch. The sterling K & P brooch is Deco in design and awash with crystal stones. It measures 1.5" x 1".  
This necklace is adjustable at the "Y", as shown in the photographs above. It will fit over your head without pulling the stones through the brooch.