For an in-depth look at several runway looks Catherine has updated to match her classic style, scroll on.
She wore a sleek Grecian-style gown with a high belted waist and a strappy neckline.
The high-necked garment also featured an open back, which Catherine surprisingly did not have closed.
The figure-hugging garment elegantly caressed the princess' curves while its Bardot neckline put her delicate shoulders on display.
The floor-length evening gown also slightly pooled around Catherine’s feet for an added dramatic element.
There were, however, two notable changes to the high fashion piece.
Catherine wore an altered forest green Beulah London dress, which originally featured modest bell sleeves.
Catherine also added button detailing on the cuffs to match the buttoning that runs down the skirt.
The stunning pink and blue patterned piece was based on a traditional tiered dress by Anita Dongre.
The first time the royal donned the gauzy gold embellished gown was at a state dinner in Malaysia.
The angelic garment originally featured loosely-fitted sheer sleeves with tapered shoulder straps peeking through the gossamer material.
The princess also added modest shoulder pads to the gown to create more structure, which lifted her posture.
The inspiration dress was a flowing strapless number with a sweetheart neckline and a bold, hot pink belt.
Catherine had the Grecian gown modified to include a higher scoop neckline that elegantly curved beneath her collarbones.
The princess also added cap sleeves to the design, giving the gown a more polished feel.
