The star, 21, also showed off the sparkling accessory in a series of Instagram snaps she posted on Saturday.
She wouldn’t elaborate any further, only adding a single heart emoji in the caption, but several fans noticed the sizable ring.
Big rock: Kylie Jenner was pictured stepping outFriday with a large diamond ring on her left hand, sparking engagement rumors
Jenner was pictured wearing a white cropped coat over an off-white cropped turtleneck and white sweats.
Just a few weeks earlier, her boyfriend of two years, Travis Scott, told Rolling Stone that he has been thinking about marriage.
There had been speculation that they had already secretly tied the knot, given that Scott calls Jenner, ‘Wifey’ a lot, but he hasn’t popped the question yet.