Vintage Art Deco Style Blue Thermoplastic and Silver-Tone Costume Jewelry Set

This vintage costume jewelry parure includes a choker-length necklace and a pair of matching clip-on or screw-back earrings, designed in a distinct Art Deco Revival style. The set features repeated geometric fan-like motifs, each consisting of a silver-toned metal framework with three radiant lines flanking a central triangular insert. The inserts appear to be made of a matte, navy-blue thermoplastic or Lucite, characterized by a smooth, domed finish that catches the light with a soft satin sheen. The construction indicates mid-20th-century craftsmanship (circa 1950s-1960s), which was a period known for high-quality plated costume pieces. The metal exhibits a polished silver finish, likely rhodium or chrome plated, which has maintained its luster with minimal visible tarnishing. Each link in the necklace is connected by strong metal hinges, leading to a classic oval-link extender chain ending in a small metal bead. Condition-wise, the set appears excellent, with no missing stones and all plating intact, though minor surface scratches on the plastic inserts are consistent with careful vintage use. The 'Art' brand mentioned in the context refers to the manufacturer Mode Art, known for its intricate designs and high sculptural quality, which is evident here in the depth of the metal casting and the precise fit of the blue cabochons.

I have conducted a visual appraisal of this Art Deco Revival parure, attributed to Mode Art (Art). My examination reveals a well-preserved necklace and earring set featuring 'thermoset' plastic inserts in a saturated navy bleu, set within polished silver-tone geometric links. The craftsmanship reflects the sophisticated casting techniques typical of Mode Art during the late 1940s to early 1960s. The 'Art' signature is highly regarded among collectors for its high-relief designs and durability. Condition appears excellent (Grade A-); the rhodium-style plating shows no 'green' corrosion or significant pitting, and the thermoplastic cabochons retain their satin luster without the 'crazing' often seen in lesser-quality plastics of the era. The market for mid-century signed costume jewelry remains stable, with specific demand for geometric and Art Deco-influenced pieces. Comparables for signed Mode Art sets in this condition typically hammer between $120 and $200 in specialized vintage boutiques and online auctions. Rarity is moderate; while the fan motif is characteristic of the period, the navy-on-silver colorway is less common than the standard pastel or gold-tone varieties, slightly elevating its desirability. Limitations: My assessment is based on photographic evidence. A final authentication requires an in-person inspection to verify the hallmark's font/placement, the weight and 'clink' of the metal (to rule out modern pot-metal reproductions), and a smell-test of the plastic when rubbed (to distinguish between Lucite and other polymers). Provenance documentation or original 'Mode Art' packaging would further solidify the upper tier of this valuation.