This is an easy fix in any photo editing software. Since there's no gold inlay, you can simply reduce saturation and make it a black & white photo. My fix took 20 seconds.
Better yet, learn to correctly set the white balance in your camera and this will not happen. If the photo was taken with a mobile phone, then there are some photo apps that can adjust or fix white balance.
This is a nice carving and it deserves a nice photo