Avril Lavigne's engagement ring is reportedly worth a cool $350,000.
Following the shock announcement that Lavigne had accepted Nickelback frontman Chad Kroeger's marriage proposal, it has now emerged that the rocker splashed a lot of cash on the ring.
Speaking of the sparkler, jewellery expert Michael O'Connor told US Weekly: "A pear shape diamond set in platinum is a nod to vintage glamour and individuality - perfect for a rocker like Avril.
"The half-moon diamonds are also rare since they would have to be specially cut to fit on either side of the centre diamond. The centre diamond is approximately 10 carats, with an additional four carats of total side diamonds."
The couple have since been spotted celebrating their engagement in Las Vegas, with reports claiming they knocked back bottles of champagne and vodka at the 1OAK nightclub.
An onlooker told Life & Style magazine: "They went to 1 Oak Nightclub in Las Vegas on Aug. 21 to celebrate their engagement.
"Avril arrived first with a bunch of male friends and bodyguards, then Chad showed up later and met them inside. Avril was so excited to see her man.
"They were super cuddly and affectionate. They drank Dom Pérignon and Grey Goose.'She can pound the vodka."
Despite the initial surprise that the 27-year old had become engaged to Kroeger, pals have since told People that they are the perfect match.
The insider said: "They have the same values and really understand each other. They complement each other and are so happy."
Avril and Chad have since spoken of their engagement in an interview with HELLO! Canada, where Kroeger revealed: "I knew I was falling for her. It was incredibly powerful and something I'll never forget."
Lavigne - who was previously married to Sum 41 star Deryck Whibley - added: "He makes me laugh every day. He takes care of me in every way and is extremely attentive."
