There's a beautiful (obviously!) photograph of Cara Delevingne in the December 2015 issue of Tatler wearing a simple but elegant white, high low dress that would look absolutely wonderful for a bridesmaid.
Take a look at some of these ideas from Dessy and you'll see what I mean:
One of the white high lo bridesmaid dresses I love is Social Bridesmaid 8125 (above) in lux chiffon with an attractive shirred halter bodice exposing that one part of a girl's body that always looks fab - her shoulders! The skirt has subtle shirring at the natural waist and the delicate overskirt billows beautifully behind when you walk. Very Cara.
Another beauty is this Lela Rose LR233 in shimmery-white Starlight. This dress is a winner is so many ways.
The dress itself is made from mousseline fabric, a lightweight, sheer material woven using a plain weave. Similar to chiffon, mousseline has more body, allowing the dress to retain its shape well. This stunning gown from Lela Rose has a golden, necklace-style halter neckline for a very contemporary look and a beautiful crossover pleat detail at the front. The low back is gorgeous and you know that any bridesmaid lucky enough to wear this will love it forever. The strappy sandals as worn in the photo are similar to those sported by top model Cara, or you could team the dress with a pair of nude-lace Coco peep-toe heels like those above - the diamante bow complements the sheen of the dress to perfection.
Admittedly not actually white, but ivory, the Alfred Sung D699 below has got to be one of the most elegant gowns in town. Its strapless satin twill has a great structure to it and it just oozes grace and sophistication. I would definitely team it with a clutch like this Quilted Olivia with its jewelled snap clasp:
Which one is your favourite?