Measuring app. 1 3/4 (including bail) x 1 1/4 inch wide, centering a pearl (4.7mm) and ruby set star on oval, concave banded agate with radiating frames of pearls (1.0-1.5mm) and rubies (1.0-1.5mm), fashioned in 14k. Suspended from a 16 inch chain. Circa 1870