The fashionista twins attended a Sephora event to celebrate the release of Elizabeth & James' new perfumes, Nirvana Black and Nirvana White.
Nirvana white is said to have floral undertones, while its sister scent has more sensual, woodsy notes.
The mini moguls looked chic as always in coordinating loose blouses and black jeans.
Mary-Kate wore her hair slicked back and kept her left hand shielded by her oversize top—hiding her gorgeous Cartier diamond ring.
The gorgeous gals kept mum on any talk of upcoming weddings in the Olsen household during the event.
And that makes sense considering Mary-Kate has yet to address the rumors that she's tying the knot to longtime boyfriend, Olivier Sarkozy.
Despite there being no confirmation set in stone, E! News has learned the former actress wants to "marry and settle down as quickly as possible," while Olivier wants a "nice long engagement."
"All we know is that Olivier will want a nice long engagement—he's been through a marriage already and had lovely kids, so he knows what it's all about," our source revealed.
But now the rumor mill is now abuzz that Elizabeth had the big question popped to her by her actor boyfriend Boyd Holbrook recently.