I’ve done some work with the Inventables brushed aluminum 2 color acrylic laserable, which is very similar to the brushed gold you’ve posted.
I really like the look of this material, but it definitely took some time to dial in the settings.
I’ll look at my notebook later when I get home for my settings. I also tried the camo/white they had but was never impressed with how it came out.
Settings are all 1 pass except for cut which is 2 passes [x2]:
Engrave: 800, 450, 40 vary (B&W image) [zooms, dpi, pews]
alt. settings 795, 340, 40min-80 vary (grayscale image helped render it 2 tone better)
Cut: 150, 50, 2 passes- I feel like this could be further optimized, on long thin items the plastic felt like it wanted to warp (250, 30x3 did NOT cut all the way through according to my notes though).
Score : 500, 20