According to the scriptures, to desire something that belongs to another is wrong.

The patriarchs, moved with envy, sold Joseph into Egypt, Acts 7: 9. Charity envieth not, 1 Cor. 13: 4 (Moro. 7: 45). Envy comes of pride, 1 Tim. 6: 4. Where envy is, there is confusion and every evil work, James 3: 16. The Lord commanded men that they should not envy, 2 Ne. 26: 32. There was no envy among the people of Nephi, 4 Ne. 1: 15-18. The envy and wrath of man have been my common lot all the days of my life, D&C 127: 2.