In-game shots of Realaccurate diamond block (Patreon)

I didn't want to have it too geometrical/symmetrical as I think it would look "fake" - the point is for it to look good, not "right" (as 1 sqm diamond blocks don't exist anyways, or if we considered a true 1sqm pure diamond it'd look like glass with a different refraction index, i.e. translucent and without any relief/detail)

Here I kept the albedo as close to the original vanilla color as possible, albeit with a slightly different detail pattern.

I added some slight detail to the albedo here to simulate the white reflections on the crests/edges so it's not too bland when no direct light is hitting the block (no normalmap incidence, no speculars...)

Night shots illustrate how it reacts to point lights and moonlight (MollyVX, NostalgiaVX, SEUS PTGI).

Shaders:

Chocapic v9.1 extreme PBR test 2 (1, 2)
Chronos Path Tracer (3)
Complementary v4.2.1 (4)
Continuum 2.1 alpha build 12 (5)
Kappa v4.1 (6 - 9)
MollyVX (10)
Nostalgia v4.0 E1 (11, 18)
NostalgiaVX P3b (12, 13)
SEUS PTGI HRR 2.1 with GFME 1.5 (14 - 16)
Spectrum (17)