Proverbs 3:15

3:15 She is more precious than rubies,

and none of the things you desire can compare with her.

Proverbs 8:11

8:11 For wisdom is better than rubies,

and desirable things cannot be compared to her.

Proverbs 20:15

20:15 There is gold, and an abundance of rubies,

but words of knowledge are like a precious jewel.