At my (decidedly non-ivy) undergrad, the degree of honors you received was based on the quality of your honors thesis, not of your overall GPA. Highest honors, then, signified that you chose to write a thesis and that it was very strong.
If your school granted you with an honors designation, I would explicitly note it on your resume--it may not be as intuitive for whoever is reading your resume.
If your school granted you with an honors designation, I would explicitly note it on your resume--it may not be as intuitive for whoever is reading your resume.





