"We can help clients go around social media, get some background on the person, what kind of style they're into," he continued.
"When you keep the element of surprise, we find that it's always more romantic,' he said. 'Peter did not want to ask her about anything because he wanted to surprise her."
Patrick was also the jeweller behind model Jesinta Campbell’s 4.5 carat sparkler which AFL star Buddy Franklin gave when he popped the question back in December 2014.
Jesinta’s ring is believed to be worth between $75,000 and $100,000.
"Jesinta had no idea about (the engagement) and we had to tap into the things she loves," Nader continued.
"Jesinta is outgoing, a bit more bubbly, a bit more savvy and edgy in her dress code - so we opted for an Asscher cut with some bling around it so it sparkles a bit more."