Vintage BSK Green Rhinestone Spiderweb Brooch Pin

This is a vintage BSK green rhinestone brooch, designed in a 'spiderweb' or starburst pattern, often associated with a 'spooky' or Halloween aesthetic, despite its intricate design. The brooch features a prominent central faceted, round rhinestone in a darker shade of green, which serves as the focal point. Surrounding this central stone are numerous smaller, uniformly sized, lighter green faceted rhinestones, meticulously set in concentric circles. Interspersed among the smaller green rhinestones are several tiny, round, light blue or aqua cabochon-style stones, adding a subtle contrasting pop of color and texture. The overall shape is a multi-pointed star or sunburst, with a 'spiderweb' skeletal structure created by the gold-tone metalwork. The metal appears to be gold-tone, likely plated, and features a textured, rope-like or twisted wire detailing along the edges of the star points and between some of the stone settings, indicating a good level of craftsmanship for costume jewelry of its era. The reverse side (visible in crop images) reveals a more open, filigree-like construction, common in vintage brooches to reduce weight and allow light to pass through the stones. The pin mechanism on the back is visible, indicating it functions as a brooch. The condition appears good overall for a vintage piece, with all stones present and the metal finish largely intact. There may be minor signs of wear consistent with age, such as slight tarnishing or minor scratches to the metal or rhinestones, but no major damage or missing stones are apparent from the provided images. The piece exhibits characteristics of mid-20th-century costume jewelry, likely from the 1950s-1970s, based on the BSK maker's mark and design aesthetic.