It's been one week since Zoë Kravitz debuted an unmissable diamond ring on that finger. The gravitational pull of the crater-sized gemstone kept her rumored fiancé, Harry Styles , in orbit on April 19. Three off-duty outfits and one People confirmation later, Kravitz's solo April 27 stroll gave the paparazzi a proper close-up of the engagement ring.

The newly-engaged actor couldn't have set up a better canvas to spotlight her new sparkler. She kept it casual in a heather gray long-sleeve, black trousers, and the high-vamp flats trend, before the bezel-set diamond stole the show. Her outfit's two additional rings—a slim, stone-free band and a coiled, snake-shaped style—hailed from Jessica McCormack , Kravitz's favorite jeweler.

Confirmation of her engagement ring's designer, on the other hand, is still under wraps.…