An unusual emerald and diamond ring, late 19th century, of cluster design, set with a cabochon

An unusual emerald and diamond ring, late 19th century, of cluster design, set with a cabochon emerald within a border of cushion-shaped diamonds in closed settings, mounted in silver and gold, size N1/2

Accompanied by GCS report no. 5784-3758, stating that the emerald measuring 10.7 x 8.7mm is of Austrian origin, with indications of moderate clarity enhancement