My idea of beauty was probably honed by what I saw on television.
When the television show Julia came on in 1968, I found Diahann Carroll so beautiful. I remember her character as a kind person, but it was her beauty I found so striking.
By Travilla-Diahann_Carroll.jpg: unknown (20th Century Fox)derivative work: TonyPolar (talk) – This file was derived from: Travilla-Diahann Carroll.jpg: , Public Domain, Link
Around the same time, Diana Rigg came on the scene to me for the first time in the television series, The Avengers. She was stunning and such a strong, independent woman for the time.
NBC Television, Diana Rigg 1973, marked as public domain, more details on Wikimedia Commons
Then Adrienne Barbeau appeared in the TV show Maude as well as a number of movies at the time. She was beautiful with her dimples and her dark hair. She is still beautiful in this photo from 2011. (I tried to find an earlier photo I could use here and not violate copyright but was not successful).
5of7, AdrienneBarbeauJune2011, CC BY-SA 2.0
Lastly, I have to include pre-cosmetic surgery Cher. I was obsessed with her beautiful hair and her interesting face. To me, this was the era in which she was the most beautiful, sans Sonny.
Tower Comics, photographer unknown., TeenIn11968a, marked as public domain, more details on Wikimedia Commons