Vintage Silver-Tone Cobalt Blue Glass Brooch

This item is a vintage-style brooch featuring a large, oval-faceted central stone in a deep cobalt blue hue, likely composed of glass or high-quality faceted paste. The stone is held within a decorative silver-tone metal frame that exhibits an ornate, shield-like architectural silhouette. The frame is embellished with intricate floral and foliate motifs, resembling small blossoms and leaves, which suggest an influence from the Art Nouveau or late Victorian revival periods. The metalwork appears to be a base metal alloy, possibly rhodium or nickel plated, showing a dark, aged patina in the recessed areas which enhances the textural details of the craftsmanship. Measuring approximately 1.5 to 2 inches in height, the brooch displays a prominent prong-setting for the central stone. The condition appears fair to good for its age, with minor visible scuffing on the facets of the glass and some dulling of the metal's original luster. The back likely contains a classic pin-and-clasp mechanism, though not visible in this view. This piece is representative of mid-20th-century costume jewelry, designed to mimic fine gemstone jewelry of the late 19th century.