Andy Murray's fiancée Kim Sears shows off her huge engagement ring

Kim Sears made a chic appearance at the Australian Open in Melbourne over the weekend, where she was spotted cheering on her tennis champion fiancé Andy Murray in the stands. Kim, who has been in a relationship with Andy for 10 years, accessorized her pretty floral dress with a show-stopping accessory – her enormous engagement ring.

Teaming the summery look with a pair of Ray-Ban Wayfarer sunglasses, the 27-year-old looked stylish as ever as she basked in the warm weather and sat just in front of Andy’s mom, Judy.

As she held on to her denim jacket and moved it from one arm to the other, spectators around Kim were given a glimpse of her eye-catching new rock.

CLICK ON PHOTOS FOR GALLERY All attention was on Kim Sears’ huge circular engagement ring

The stunning piece of jewellery looked to be made up of a huge diamond flanked by a ring of smaller stones, which caught the sunshine as Kim ran her hand through her hair.

“Kim’s ring features a four to five carat cushion cut diamond surrounded by a halo of round diamonds to give it extra size and sparkle,” said David Allen of 77 Diamonds.

“Assuming Andy’s penchant for sporting perfection was used for his diamond search then a high quality diamond can be expected giving the ring a value of £150,000-200,000 [approximately $270,000 – $362,000 CA). Celebrities like Kim Kardashian, Kaley Cuoco and Jennifer Garner all sport similar cut engagement rings.”

Kim Sears looked elated when her fiancé Andy Murray won straight sets

Kim clapped and cheered and looked visibly thrilled as her fiancé, also 27, stormed to victory, winning straight sets on the opening day of the tournament and beating India’s Yuki Bhambri.

Kim, who often accompanies Andy on his sporting travels around the world, was last pictured showing off her engagement ring in public in December – about a month after her Wimbledon ace beau popped the question.

At the time artist Kim was running errands near the couple’s home in Surrey, but Monday’s outing in Australia appeared to be the first time she had worn the ring out to a big tennis tournament.

While details of the proposal are not known, as the couple are eager to keep their relationship private, Andy’s representative confirmed the happy news at the end of November.

Rumours had been surrounding the lovebirds for months, after bets on them becoming engaged quickly began to appear.

Kim Sears often travels around the world, supporting her fiancé Andy Murray at tennis tournaments

Andy and Kim met in 2005 when the brunette beauty attended a tennis championship with her tennis coach father Nigel. As she was 17 at the time, Kim made sure to focus on her exams and school work, and the couple did not go public with their romance until the following year.

Earlier in 2013 Andy revealed that he would love to have children with Kim, writing in his autobiography: “I can see myself having a family. It is something that I’m starting to think about because Kim and I have been together for eight years.”

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