Old ring author's work with emerald and diamonds

1 diamond (teardrop) weighing about 0.47ct H/VS2
8 diamonds weighing about 0.80ct H-K/VS-P
1 emerald about 0.65ct, 1 cultured pearl
product weight: 4.12g, pr. 0.750 gold + silver
An interesting, author's product of a former master jeweler with a top-class emerald. Centrally cast pearl accompanied by good quality diamonds. The product is very sought after on the antiquarian market