Wikipedia:Articles for deletion/Golden diamond
It's a pretty-enough structure but that's not a notability criterion. All but the first of the ten references is background, and the one exception is an arXiv preprint, not reliable, so this appears to fail GNG. The article is written to appear as if the Northshield reference also describes this structure, but it doesn't: the geometric structure it describes is built of squares, not equilateral triangles. (One can't merely say that they're the same because if you throw away the geometry and turn them into graphs you get the same graph; the geometry is what makes it a fractal. And they're not even the same graph unless you add horizontal diagonals to Northshield's squares.) So we don't appear to have any of the multiple reliable independent in-depth sources required by 
— User:David, 06:18, 4 March 2021 (UTC)
Stance: delete
Cited policy: WP:GNG (Wikipedia:Notability)