Up for consideration is this Vintage Milk Glass Rhinestone Brooch Pin.
This brooch almost looks like fireworks! There are white marquise-shaped, milk glass stones separated by rows of aurora borealis rhinestones with one larger one in the center. All the rhinestones are all prong-set in silver tone and there's a nice height in this brooch.
Measurements: 1 3/4" in diameter -- 4.4cm