Wedding dresses we imagine Pippa Middleton wearing on her big day

It isn't long now until Pippa Middleton and James Matthews tie the knot, so the curiosity surrounding the dress Pippa will don is gaining steam. After all, she turned heads at her sister Kate's wedding to Prince William in April 2011, so she's sure to stun on her own big day.

SEE ALSO: The absolute prettiest dresses from Bridal Week

A few designers have already weighed in -- exclusively to AOL Lifestyle -- with predictions and suggestions for the Duchess' sister. Sachin of Sachin & Babi predicts that Pippa won't follow in her famous sister's footsteps, while Monique Lhuillier says she should wear a body-hugging gown (perhaps trumpet-style) with long, sheer sleeves.

Only time will tell what she chooses, but in the meantime, watch the video above for a few stunning options we think would suit her perfectly.

And before you go, scroll through below for some of the prettiest dresses from Bridal Week (we think Pippa would look amazing in No. 9):