In one of the last photos taken of her at a public event, Gia flashed a big smile at the Farm Sanctuary 25th Anniversary Gala at Cipriani Wall Street on May 14, 2011, in New York City.
"Breakfast on the bay with my cupcakes@jasonresminiesq and @ryananderson33#RhodeIsland #3BestFriends," she wrote June 23 while vacationing up the coast with boyfriend Ryan Anderson and a pal.
Gia and her pals got their glow on with a Pure Barre workout in New Orleans on July 11.
Gia and Ryan dined at renowned NYC restaurant Daniel on July 16.
"My dates O & R #Vegas #Zarkana #CirqueDuSoleil," Gia wrote. She was in Las Vegas on July 21 with NBA player boyfriend Ryan Anderson, a forward for the New Orleans Pelicans.
One of Gia's pet causes, so to speak, was animal rescue. She snuggled up with her dog Benny on July 28, writing, I'm soooo obsessed with him...#Benny #SleepyBaby#DogsOfInstagram #MyHeart."
The Herbal Essences spokeswoman just had a photo shoot for the hair care line on Aug. 5. "Hair time. Thanks @herbalessences for helping me get ready. #gettherose," she wrote. The following day she went out and bought some of the products the makeup artist used on her.
Gia blows the camera a kiss while getting the final touches put on her look for her last Herbal Essences photo shoot in NYC.
"@herbalessences and @charlesbstrahan I love my hair sooo much y'all have me taking bathroom Selfies#YesYesYes," she posted on Aug. 5.
NEXT GALLERY: Cory Monteith: A Life in Pictures
This is Gia's last Instagram post, dated Aug. 11, the day before she apparently hanged herself at her New Orleans home.