Is it muter for a girl getting engaged during the 9 days to buy a new Shabbos dress to meet her chosson and for the l’chaim?
Answer:
This is not permitted. It is not permitted to wear new clothes (or to buy new clothes) in the Nine Days, and although it is nice to wear new clothes for an engagement, this is not an official “se’udas mitzvah” (like a se’udas bris) which will permit doing so.
Best wishes.