Vintage Sterling Silver and Aqua Rhinestone Flower Brooch

This is a vintage floral-motif brooch or pin, likely dating from the mid-20th century (circa 1940s-1950s). The item features a scalloped, five-petal flower design constructed from what appears to be gold-over-sterling silver (vermeil) based on the warm tone and the user's confirmation of it being sterling. The petals are rendered with a fine openwork or filigree textured finish, providing a light, airy aesthetic. At the center is a circular clear rhinestone, surrounded by six oval-cut faceted stones in a vibrant aqua or turquoise-blue hue, arranged like a crown or stamen. The user notes a hallmark of a large 'H' with an 'I' in the middle, which is indicative of the maker's mark for the I.H. Manufacturing Co. or similar period costume jewelers specializing in sterling silver pieces. Regarding condition, the metal shows significant tarnish and a dark patina, particularly in the recessed areas of the openwork, which is characteristic of aged sterling silver. There is visible wear to the gold plating on the raised edges. The stones appear intact, though they may have dulled slightly over time. This piece represents typical high-quality mid-century costume jewelry craftsmanship where precious metals were utilized as a base during periods of base-metal shortages.

I have carefully examined the provided images and descriptions of this mid-century floral brooch. The piece displays the hallmarks of the I.H. Manufacturing Co., a firm known for producing quality sterling silver and vermeil jewelry during the 1940s. The 'H' with an internal 'I' identifies this period accurately. The use of sterling silver as a base was common during WWII due to base-metal restrictions, elevating this piece from standard costume jewelry to a hybrid 'fine' category. The openwork filigree and aqua rhinestone stamen are characteristic of the aesthetic sensibilities of that decade. Condition: The item shows a heavy patina and significant loss to the gold vermeil, which is common for its age. While the stones remain intact, the tarnish has reached deep into the recessed textures. The market for mid-century sterling floral pins remains steady but saturated; pieces by noted designers like Trifari or Coro command higher premiums, whereas I.H. Mfg. Co. items are sought by niche 'Retro' collectors. Limitations: This appraisal is based solely on digital images. Without physical inspection, I cannot verify if stones have been glued or if they are original glass or higher-quality synthetic spinels. In-person examination is required to check for structural cracks in the solder points and to test the silver purity with an acid kit or XRF scanner for absolute verification. Provenance documentation or a professional cleaning by a jeweler to reveal the state of the underlying silver would further refine this valuation.