Edwardian Era Stick Pin and Lavallier Pendant Set in Velvet Presentation Case

This antique jewelry set consists of a stick pin and a pendant necklace, likely dating from the early 20th century (Edwardian era, circa 1900-1915). The items are presented in an original velvet-lined, silk-interior presentation box which shows significant age-related wear, including fraying at the hinges and discoloration. The stick pin features a yellow gold-toned metal shaft terminating in an open-work scroll head set with a vibrant deep green center stone, possibly a synthetic spinel or glass common to this period. Adjacent to it is a lavallier or bar-style pendant on a fine cable chain. The pendant features a geometric circular drop with concentric wirework and a tiny accent stone, likely a seed pearl or small diamond chip, at the center. The craftsmanship is characteristic of the transitional period between late Victorian and Art Deco, utilizing lightweight wire designs and delicate filigree-like patterns. While no hallmarks are visible in the photograph, the style and context of a grandmother's heirloom suggest they could be 10k or 14k gold, or high-quality gold fill. Condition-wise, the pieces appear intact, though the metal shows a darkened patina and the velvet casing shows signs of heavy conservation needs.