Vintage Aurora Borealis Crystal Christmas Tree Brooch

This is a mid-twentieth-century costume jewelry brooch designed in the shape of a stylized Christmas tree. The piece is constructed on a gold-tone base metal frame and is densely packed with faceted glass rhinestones. The stones feature an 'Aurora Borealis' (AB) coating, which gives the clear crystals an iridescent, rainbow-like shimmer reflecting hues of yellow, pink, and light blue. The crystals are predominantly round-cut and are securely clustered to form the triangular body of the tree. At the base, a polished gold-tone metal trunk extends downward. The craftsmanship is indicative of the late 1950s or 1960s, a peak period for holiday-themed costume jewelry by designers such as Weiss, Eisenberg, or Trifari. Geographically, these were commonly mass-produced in the United States or Austria. There are no maker's marks visible from the frontal orientation, but the setting shows consistent prong construction. The condition appears to be excellent vintage quality; the crystals retain high brilliance with no visible missing stones, and the metallic finish on the trunk shows minimal tarnishing or surface wear typical for its age. This style is highly collectible due to the high refractive index of the AB coating and its timeless seasonal appeal.