Sofia Richie shows off her golden tan as she soaks in the sun with fiancé Elliot Grainge on a boat

Sofia Richie looked incredible as she enjoyed a sunny boat trip with fiancé Elliot Grainge as they continued their St Tropez holiday on Saturday. Trendy: Elliot sported a grey baseball cap, and a dark T-shirt and matched his fiancée in a pair of black shades Outfit change: The couple later underwent wardrobe change, with Elliot ditching the hat and donning a white shirt, which he left partially unbuttoned She also slipped into a skintight patterned bodysuit, which she teamed with the matching shorts that showed off her lithe legs. Looking good: Sofia put on a leggy display in pair of beige shorts and a black form-fitted top, with a cutout to show off an extra peek of skin Beauty: She scraped back her locks into an elegant bun, and sported a pair of white and gold dangly earrings Loved-up: She cosied up to her fiancé, and shielded her eyes from the glare of the sun behind a pair of black sunglasses Sensational: She also slipped into a skintight patterned bodysuit that highlighted her incredible figure Leggy display: She teamed it with the matching shorts that showed off her lithe legs She posted a picture of Elliot proposing to her at sunset surrounded by candles. Guests: The couple was joined by James Corden and his wife Julia Carey, who nailed summer chic in a white maxi dress Casual: James wore a black T-shirt and spotted shorts, with colourful trainers and black sunglasses He presented Sofia with an emerald-cut diamond ring that various experts quoted by Page Six have estimated to be anywhere between four and eight carats. Romance: Sofia announced her engagement to Elliot, the son of Universal Music Group chairman and CEO Lucian Grainge, in late April on Instagram Sweet: She posted a picture of Elliot proposing to her at sunset surrounded by candles Romantic: 'Forever isn’t long enough,' she wrote with her Instagram caption, which included a romantic picture of her and Elliot kissing Musical talent: Elliot has joined the family business and gone into the music industry himself, founding an indie record label called 10K Projects He dished that when Elliot asked him for permission to propose to Sofia: 'He was a nervous wreck, poor guy, I thought he was gonna pass out but he survived it.'