An emerald and diamond ring, France, early 20th century, of cluster design, set with a step-cut

An emerald and diamond ring, France, early 20th century, of cluster design, set with a step-cut emerald weighing 1.29 carats, within a border of circular-cut diamonds, size N, French maker's mark AH with omega symbol

Accompanied by AGL report no. 1138069, stating that the emerald measuring 8.1 x 6.3 x 3.2mm and weighing 1.29 carats is of Colombian origin, with indications of insignificant clarity enhancement