What is the expression: your hair is your crown and glory; or your hair is your crowning glory?

I think most people say "crowning glory." However, there are two well-known biblical passages that involve the concept, and they are as follows:

Proverbs 16:31

"The hoary [gray] head is a crown of glory, if it be found in the way of righteousness."

1 Corinthians 11:15

"But if a woman have long hair, it is a glory to her, for her hair is given to her as a covering."

I'm using the Scofield Reference Edition.

Crowning glory is the standard phrase, and can apply to other than hair. It can be an achievement, or a finishing touch, where the word crown would not be appropriate.