The boot, (pictured right) dubbed the Mercurial CR7 Rare Gold, is a gift from Nike to Ronaldo as a tribute 'to his remorseless work ethic'. The company explains:
"The micro-diamonds are remnants from larger stones that are painstakingly perfected by craftsmen. As the diamonds are refined & the details sharpened, tiny pieces are cut away, leaving micro-diamonds behind as evidence of work in progress. The commitment to keep chipping away at something already impressive reminded Nike’s design team of Ronaldo’s work ethic. While many see Ronaldo as the best in the world, he sees room for improvement"