Proverbs 11: 22 (NKJV)
22 As a ring of gold in a swine’s snout,
So is a lovely woman who lacks discretion.
The word "discretion" means: 1. The quality of being discreet; circumspection 2. Ability or power to decide responsibly.
If someone put a “ring of gold” in a pig’s nose, it wouldn’t be seen as being very pretty because the filth that most pigs live in, will, very quickly, make it be soiled beyond recognition. This is the way that God feels about a woman who is not discreet and doesn’t take the time to learn to act responsibly. No matter how pretty the woman is to look at, she will quickly lose that “loveliness” as disgust at her lack of integrity make themselves known.