Typophile

Classy modern sans serif font from jewelry website FOREVERMARK

WeAreLegion

I'd like to know what is the title font used for "The Forevermark Promise"
http://forevermark.com/en-US/

Sang Bleu, by Swiss Typefaces:
https://www.swisstypefaces.com/fonts/sangbleu/

Used without proper license, it seems.

Riccardo, why do you conclude that Forevermark is using the webfont illegally?

Because the CSS declaration is for "sangbleu_bptestfont", which is the name of the demo fonts you can download for free just for testing purposes prior to purchase a license.

Captured from web.archive.org on 15 Apr 2015. view this capture