Materials and Features:

• Iconic Napier Shrimp Spray Engineering: A celebrated technical configuration featuring a heavy, continuous cast-metal channeled base curved into a dynamic crescent-shrimp motif with structured cascading leaf drops.

• Ombre Multi-Tone Crystal Pigmentation: Features a rich tonal gradient pairing a dominant, open-backed emerald-cut citrine centerpiece with prong-set accents of honey amber, lime olivine, and deep forest emerald navette rhinestones.

• Authentic Cast Base DNA: The reverse framework exhibits smooth, uniform factory gold plating with zero puddle anomalies, showing cleanly finished stone setting ports and an integrated pin hinge bracket assembly.

Type: Standard safety rollover catch with horizontal bar pin hinge back

Age/Origin: Circa 1958 - 1964 / USA

Marks: Unmarked (Attributed to The Napier Company based on documented cast framework channels, prong configurations, and specialized multi-tone stone layouts)

Measurements:

• Weight: 12.1g (including findings)

• Thickness: 12mm (Total dimensional profile height)

• Dimensions: 1.625 inches length x 1.625 inches width

Condition: Excellent Archival Condition. The brooch face is immaculate with all 19 navette stones and the large octagonal centerpiece showing flawless original facets, crisp points, and blinding internal fire. The gold-plated cast framework is bright and untarnished with no visible plate loss. The pin back mechanism remains straight, clean, and locks tightly into the rollover safety catch.