In case you're wondering, diamonds are still indeed a girl's best friend.

Just ask the likes of Olivia Palermo, Georgina Bloomberg, Gillian Hearst, Sophie Elgort, Ariana Rockefeller, and Lili Buffett, who all stepped out on Wednesday to indulge in a night of cocktails and jewelry browsing with De Beers. 

The glittering fete, hosted at the iconic brand's Madison Avenue boutique, was held in celebration of De Beers' latest high jewelry collection, Reflections of Nature, as well as its ongoing partnership with the New York Botanical Garden. Everyone from DJ Mei Kwok, who provided tunes throughout the evening, to models and style stars Natasha Poly, Nina Agdal, Jessica Wang, and Tina Leung had the chance to rock the glamorous new pieces during the event. Let's just say Marilyn Monroe would have definitely approved.

Click through for a look at what you missed!

[Photos by BFA courtesy De Beers]