Antique natural emerald and old European cut diamond halo ring in 18 karat yellow gold

Set in 18 karat gold and platinum, this ring holds a center natural emerald that I have not certified but is definitely presenting as Colombian. It has an open culet which I just find absolutely adorable and is surrounded by approximately 1.1 CTW of old European cut diamonds. It measures 16.1 x 14.3, it weighs in at a very hefty 8 g, it is a size 6, sizable.