The center back played alongside the Portuguese during their time together at Manchester United and he has only good memories of the Ballon d'Or holder.
The Portugal international is often criticized for his perceived arrogance, yet Pique is adamant that the prolific forward is a friendly guy off the pitch.
The pair were teammates at Manchester United between 2004 and 2008 and the Spain international center back has nothing but good words for the Madrid star.
"He may have been a bit too sincere when he said that people are jealous of him because he's handsome, rich and a great player," Pique was quoted as saying by Marca.
"I know him very well and he is a friendly guy. His public image does not correspond with how he is in real life."
Pique left United for Barcelona in the summer of 2008, with Ronaldo saying farewell to Old Trafford for Madrid one year later, yet the duo have maintained a good relationship ever since their time together at the Premier League club - despite the rivalry between their current clubs.