Very nice quality, well-made ring. Wouldn't surprise me at all if this was H Stern. The ring falls on a US Mandrel at a US Size 7.5, UK size O 1/2.
It sits off of the finger 15mm. The face of the ring is 20mm in diameter. The Emeralds measure in range from 3.5mm to 2mm. It is fully hallmarked, as been tested, and verified weighing in at 7.5 grams. There is chipping to a few of the stones that can be seen under magnification. This item is a Vintage piece and there will be ordinary and normal use marks. Comes from a clean, smoke-free home.