The presenter, 27, donned a busty cream swimsuit, tucked into a pair of jeans as she relaxed in the sun.
She flashed her giant diamond engagement ring, following her recent proposal from sportsman Ben Simmons.
She hid under a large straw hat and wore minimal makeup with her raven tresses styled in neat curls.
Captioning the stunning snaps, she wrote: '...like butter wouldn't melt'.
She now splits her time between the UK and the States in order to spend time with her NBA star fiancée Ben.
A source told: 'Ben adores Maya and has fallen head over heels for her. He picked up the ring on Jewelers' Row in the diamond district of Philadelphia the day before he proposed.
They added: 'Ben was so excited, but they've decided to keep the news low-key and tell only those closest to them. Maya flew to New Jersey to spend Christmas with him and is still there now.
'They had a small family gathering last weekend and announced their engagement.'
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