The day (May 19, 2018) is almost here and we simply can’t wait. And while we’ll be glued to our small screens to watch the ceremony, what we’re most excited about is Meghan in all her bridal glory. And while Markle can have a dress made from 18k welsh gold if she wants to, the Queen must approve. Not just that. She will also have to follow a long list of guidelines for the design of her dress, just as Kate Middleton and Princess Diana did for their big days. Meghan too will have to adhere to certain fashion rules for her wedding gown if she's to be accepted by her royal in-laws. No pressure, though…

Kate Middleton's wedding dress, designed by Sarah Burton for Alexander McQueen, had lace sleeves as well as a lace trim on the veil. However, the skirt of it was a lace-free one, lending her overall look that subtle modern edge. The heavy top-lace ensured that the traditional fabric would be heavily photographed.

Middleton's gown was decidedly low-cut for such a high-class occasion. However, you will notice that there was absolutely no cleavage showing. It was a neat 'V' neckline that went into sheer lace long sleeves. (We love how she chose to let her beautiful neckline take centre stage by not accessorising it at all…if our opinion matters).

While this wasn't a 'royal wedding' per se, Pippa, the sister of the Duchess' gown had to follow certain rules too. And after a relatively low neckline at her own sister's royal wedding, Pippa seemed to have learned her cleavage lesson. She also followed the royal rule (though not actually a royal herself) of covering her shoulders. And look at all that lace!

It's unclear if this is a hard and fast rule, or simply a tradition due to the fact that the second gown is often made to be more comfortable than the first. Middleton's second dress was remarkably less photographed than her famous first ensemble but it looked so comfy! (Her fuzzy jacket though!) Markle will reportedly wear a second dress for the reception, as well, so she can celebrate sans corset.

While this isn't a very strict rule, it's one that's followed by most royals. While Markle has no jewellery of her own (yet), she is allowed to borrow one of the Queen's stunning pieces to wear down the aisle if she wants to.

No matter Markle's personal taste, no matter the other rules that she has to follow, the most important rule of them all is that the queen MUST approve of Markle's wedding dress. No approval from the crown means no dress. We bet Markle's wedding to Prince Harry will be next level dreamy, with a dress to match — as long as it follows all of the rules.