An emerald and diamond brooch, early 20th century, of rectangular outline with rounded corners,

An emerald and diamond brooch, early 20th century, of rectangular outline with rounded corners, centring on a step-cut emerald measuring 10.7 x 9.7 x 5.9mm, within concentric borders of circular-cut diamonds and calibré-cut emeralds, mounted in silver and gold, length 3cm, case stamped Wiktor Czaplick, Krakow

A verbal report from GCS states that the emerald shows indications of minor clarity enhancement, origin: Colombia