For me, The Unbearable Lightness of Being-Milan Kundera; On Earth we are Briefly Gorgeous-Ocean Vuong; Love in the Time of Cholera-Gabriel Garcia Marquez. The most tragic, painful, human suffering can be presented and these writers present it in the most excruciatingly beautiful prose.
On Earth we are Briefly Gorgeous-“A woman stands on the shoulder of a dirt road begging, in a tongue made obsolete by gunfire, to enter the village where her house sits, has sat for decades. It is a human story. Anyone can tell it. Can you tell? Can you tell the rain has grown heavy, its keystrokes peppering the blue shawl black?”
What is the beauty for you?
Anything by Jeanette Winterson and Emily St John Mandel. This is How You Lose the Time War had some gorgeous prose. I recently read The Tsar of Love and Techno by Anthony Marra and it just punched me in the guy. Some sections were absolutely beautiful.