Stunning vintage necklace featuring a luminous moonglow blue thermoset center stone accented with sparkling rhinestones in an ornate silver tone setting. The soft, glowing finish of the square cabochon creates a beautiful light-catching effect, making this piece a true standout. Measuring approximately 15 inches end to end. A classic mid-century (1950s–1960s) design, often associated with thermoset and rhinestone jewelry, with subtle Art Deco–inspired symmetry.