There are no tool marks or unfinished areas on the ring, including inside the setting.
The mounting is hallmarked 14 carat gold and 950 platinum ruthenium.
The solder joint between the round platinum ruthenium setting and yellow gold shank is complete, from inside the shank to the base of the setting, and at the top area of the shank.
The platinum ruthenium setting is counter-sunk into the top of the yellow gold shank, and solder flows completely around the base of the setting.
The setting is squarely aligned with the mounting.