To value: This means to consider something precious.
* "She valued her friendship with him."
* "He values honesty above all else."
To cherish: This means to hold something precious and close to your heart.
* "She cherishes the memories of her childhood."
* "He cherishes his family."
To treasure: This means to hold something precious and keep it safe.
* "He treasured the antique watch his grandfather gave him."
* "She treasures the letters her grandmother wrote her."
To prize: This means to consider something highly precious and valuable.
* "He prizes his independence."
* "They prize the opportunity to travel."
You can also use the verb "to be" with "precious" as an adjective:
* "The antique vase is precious to me."
* "Their time together is precious."