Wiktionary
diamondlike
a. Having characteristics, or molecular structure, of diamond
Usage examples of "diamondlike".
It was indeed a handsome snake, with large diamondlike patterns running down the length of its back and sides.
And there was also the diamondlike gem, as big as the end of his thumb.
She scanned the ledges closest to her and saw, amid thin patches of normal white snow, streaks that shone with a diamondlike glitter.
An inverted pentacle with diamondlike stones winking at its five points.