Our solid 14k gold skull necklace has black diamond eyes. (He also comes with white diamond eyes, and in sterling silver*, linked here:
https://www.modanashville.com/products/dru-baby-skull-necklace-sterling-silver?_pos=3&_psq=skull&_ss=e&_v=1.0
(*There is a 1-2 week turnaround time for the silver skull)