I'm glad that my thoughts may be helpful to you! I'm not really experienced in identifying rings, but it definitely helps to put heads together - and that's what this forum is for!
You bring up a good point about the origin of the ring. I guess my view was based on the assumption that since the inscription addresses the husband & wife as "Mom & Dad," it must be from the children, who would refer to them as such.
But you're right, that leaves us questioning why one would gift a single, masculine ring to both parents. Now that I think about it, your idea does seem to be a more likely scenario. Looking at what we do know of the ring - that it appears masculine, and that it reads something like, "Mom & Dad 12'25'52" - it would certainly make sense to say that it was a 1952 Christmas present
from "Mom & Dad"
to the son, like you suggested.
This is a fun & interesting topic; thanks for sharing your find with us!