Measuring 1 3/4 x 1 inches in overall dimensions; centering four, collet set; 3.0mm Old European cut diamonds; with a combined approx. weight of approx. 0.40ctw; framed and flanked by fifty Old Mine cut diamonds; with a combined approx. weight of 1.75ctw. Linear open design of a crown with primary trefoil and foliate motifs. Millegrain accents. Tube hinged “C” type catch. Fashioned in silver-topped 10k yellow gold. Circa 1895.