Near-perfect famously gorgeous brooch made for Sarah Coventy by DeLizza & Elster. Luscious aurora borealis navettes glint teal and purple, surrounding pale and sapphire blue rhinestones, all set in rhodium plated silver tone. Circa 1960’s.
Measurements: 2.75 by 1.75 inches (7 by 4.4 cm)
Marks: © sarah cov
Reference: page 240, Costume Jewelry 101, by Julia C. Carroll, where it is pictured with matching earrings; appeared in a 1964 advertisement, attached.