Got a piece of macadamia from a friend a few months back, and a piece of lacewood I bought from WC. It may be just these 2 specific pieces, so consider that, but I would say that the macadamia is more orange-red, while the lacewood is more brownish-red, and the patterning on the macadamia is larger, while the lacewood it tighter. Any of this could be caused by the age, size, and location on the tree of these 2 specific pieces, but I'm throwing them out there in case anyone else has a couple pieces that seem to have the same differences...