Blue Moonstone Glass Brooch AB Rhinestones Vintage Pin

Lovely vintage blue moonstone glass and blue iridescent aurora borealis rhinestone brooch is two interlocked multi-level circles. Unusual design and stones. The blue moonstone glass cabochons are two sizes and have very pretty luminosity. Goldtone metal, great vintage condition with just one issue -- the pinstem sticks out a little past the edge of the pin, so it's probably a replacement. It's unmarked and measures 1 3/4" x 1 1/2".