An emerald and diamond ring, early 20th century, set with a step-cut emerald, between shoulders set

An emerald and diamond ring, early 20th century, set with a step-cut emerald, between shoulders set with circular-cut diamonds, accented with rose-cut diamonds, to a scrolled gallery, mounted in gold, size K1/2

Accompanied by GCS report no. 77104-16, stating that the emerald measuring approximately 8.9 x 7.3 x 4.1mm is of Colombian origin, with indications of minor clarity enhancement