A good Bat mitzvah gift of money really depends on how close you are to this person.
The Jewish tradition is to give gifts of money in multiples of 18.
Grammatically, You say B'nai Mitzvah just as you would Bar Mitzvah or Bat Mitzvah.
A Bat Mitzvah girl can wear appropriate formal wear, such as an elegant dress or a pant-suit.
It's appropriate to dress modestly, yes.
Congratulate her on her Bat mitzvah and tell her you know she did a good job on the bema. Tell her you have been thinking of her but can't make it to the bat mitzvah and that you are sending a small gift. You could find a picture of the two of you and frame it or give her a nice necklace to remind her of your friendship and her bat mitzvah.
The plural for a bat mitzvah is a b'nai mitzvah
The Bat Mitzvah is a ceremony that celebrates a girl becoming a bat mitzvah, that she is now old enough to take on the religious responsibilities of an adult , in her faith community. The traditional wish, after her first time reading from the Torah publicly is "mazel tov" and to comment on how good a job she did. If you wish to know what the appropriate gift is, in most communities, girls will register at gift stores. Alternatively, if you wish to give a monetary gift, the tradition is to give multiples of 18 as this is the numerical value for the Hebrew word for life. If the girl in question is not a close family friend, $18 dollars is suitable.
NO Barmitzvah's are for men. BATmitzvah's are for women
There are two options when it comes to gifts for a bat mitzvah. The first is a gift of an object, in this case, it would be any item that is appropriate for a 12 years old girl. In many communities, the bat mitzvah girl will register at gift shops so you can check with her parents to see if that is an option. The other option is a monetary gift. Within the Jewish community, the tradition is to give gifts of money in multiples of 18. This practice derives from the Hebrew word for 'life' having the numerical value of 18.
The most appropriate would be "Mazol Tov" which means congratulations in Hebrew. Also, I should point out that the term is Bar Mitzvah or Bat Mitzvah (Bar for a boy, bat for a girl).
The Bat Mitzvah takes place in the synagogue.
You can order bat mitzvah invitations at stationary stores.
Girls Bar Mitzvah is called a Bat Mitzvah. A Bat Mitzvah happens when a Jewish girl turns 12 years old. Once the girl reaches that age she is an adult according to the Jewish law. This means that the girl will have to follow all applicable rules. During the ceremony the Bat-Mitzvah girl will wear the dress of her choice.