6. 1948: Loretta Young
In 1948, Loretta Young won the Best Actress accolade for her role in Farmer's Daughter. She marked the event by wearing a voluminous, emerald-green dress with a garland of oversized bows and ruffles running down the length of the skirt. The bright green dress was paired with elbow-length gloves in the same color, creating a fashion-forward picture.

The gown was created by Adrian Greenberg, the costume designer behind the fanciful outfits of The Wizard of Oz — including the red-sequined ruby slippers worn by Judy Garland. He was also the designer behind hundreds of Metro-Goldwyn-Mayer films between 1928 and 1941, so he had a close relationship with many of Tinsel Town's top actresses. 

While Young's dress was showstopping, she further upped the glamour by adding a Joseff of Hollywood brooch-and-necklace concoction. The gold necklace was accented with a diamond scrollwork brooch that was augmented with six ball tassels. While elaborate, this wasn't the first time Young wore the piece. She also wore the necklace in the 1941 film Bedtime Story, seven years prior. Marta Toren also wore just the brooch (which was the diamond portion) in the 1948 movie Casbah, proving that the avant garde piece was versatile enough to be worn over and over again.