Mimicking the sapphire and diamonds on her wedding ring, this blue outfit paired with a white accent scarf was breathtaking on Diana.
This trendy mixture of colors was worn during Diana's visit to Hong Kong.
Diana's coral blue sequin gown is a Catherine Walker original and was worn at the Diamond Ball.
Charles and Diana climbed Ayers Rock in Australia, wearing neutral off-white and beige colors.
Diana's floor length black and white gown is beautifully accented by her pearl necklace and earrings.
Diana heads to dinner in Argentina in a head to toe red ensemble.
Diana sported this body-hugging, ocean-blue satin dress in Sydney, Australia.
In what could be a 2016 look from Zara, Diana fashioned a pair of buttercup-yellow overalls with a patterned shirt and statement shoes.
Picking up on the fluorescent pearls on her neck, this sophisticated outfit was worn on a trip to Nigeria.
Diana paired classic pumps with a dramatic, flowy dark blue gown.
The delicate, yet bold purple choker on Diana was the perfect compliment to this Bruce Oldfield couture gown.
Complete with a tiara, striking jewelry, and a gold clutch, Diana looked radiant in this pink Victor Edelstein creation.
Diana is all class in this blood-orange ensemble. The flared hat added a nice touch to the spotted gown with sleeves.
Diana's cream buttoned blazer picks up on all the beige hues of these Egyptian pyramids.
This pre-wedding moment highlights Diana's youthful simplicity. The princess paired a patterned sweater with high-waist corduroy pants.
Diana showed her shoulders in this navy number completed with a timeless necklace.
Princess Diana stunned everyone when she wore an ivory pearl-studded shalwar kameez to a cancer fundraiser in London in 1996.
Gianni Versace designed a Jackie O-inspired pink suit for Diana's visit to the nation's troops, and her pillbox hat was from Philip Somerville.
Diana turned heads in a crimson-colored Christian Lacroix dress in 1995.
Diana glowed in a hot pink frock coat with a matching skirt for a fun, business-inspired look.
Diana visited the British School of Seoul in South Korea and wore a fitted green suit with matching pumps.
Diana was the epitome of high fashion in a pearl-encrusted bolero by Catherine Walker that was inspired by Elizabethan ruffs.
Diana looked positively regal in a navy velvet column gown by Victor Edelstein.
Diana was nicknamed Dynasty Di by the tabloids due to the wide-shouldered gowns that she wore, including this silver Bruce Oldfield.