It must be very valuable. I have a silly question for you. The diamond is much more valuable than the ring. The entire Jewish people, both men and women mourned him, because he was a lover and pursuer of peace.
People sometimes get confused.
They have a good relationship with a friend or a neighbor. Then they get into a disagreement about money, or building repairs, or a seat in shul. They allow the disagreement to ruin the relationship and they bear a grudge against the person. Good relationships between people are as valuable as diamonds. They are the shalom in the world that Hashem wants so much.