Start early maybe? My fiancee had 2 years of knowing I wouldn't buy a diamond before I popped the question so she knew way out and it wasn't a surprise. If sh

Start early maybe? My fiancee had 2 years of knowing I wouldn't buy a diamond before I popped the question so she knew way out and it wasn't a surprise. If she was the type that would demand a diamond she would have left a long time ago.