Ruby Rd. Petite Black Embellished Rhinestone Open Front Cardigan Size PM Ruby Rd. Petite Black Embellished Rhinestone Open Front Cardigan, Size PM. This elegant black cardigan features shimmering rhinestone embellishments along the shawl collar for a touch of sparkle. Made from a comfortable blend of 60% cotton and 40% viscose, it offers a soft feel and a flattering drape. Perfect for layering over a dress or blouse for evening events or holidays. Excellent pre-owned condition with no missing rhinestones or signs of wear.