The bohemian beauty, 29, chose a v-neck three quarter sleeve full length ivory Missoni gown with ribbed detail to marry fiancé Andrea Casiraghi on Saturday.
The bride also ditched the usual high-heeled bridal footwear and surprised with silver flat sandals. She topped the vintage look off with tousled tresses and a floral headpiece.
She also chose not to wear any noticeable jewellery, just a simple silver bracelet and a ring.
Mum-of-one Tatiana is best friends with Margherita and Teresa Missoni, who are both heirs of the hugely successful fashion empire Missoni.
She is usually seen in their creations, just two days ago, she chose crimson Missoni coloured dip-dye dress for her pre-wedding dinner, which took place in Princess Caroline's luxury yacht Pacha III.
What do you think of Tatiana's bridal look? Leave your comments below.