Although this does look the same but of course I think there is a slight difference in this.
When talking about wife's jewelry, even though it was indeed bought with the money you gave, I still think it belongs to your wife and actually I feel quite exaggerated to do something like that because investing is indeed very good but you don't have to sacrifice what your wife has .
I think there is such a thing as a better course of action with some of your own savings than auctioning off your wife's gold and investing the proceeds from the sale for bitcoins.