Lipa wore a black sleeveless top and a burgundy lip to sip on her favorite cocktail, but the real eye-catcher of her look was the gleaming diamond ring that she wore on that finger. The sparkler seemed to be a round solitaire diamond inset on a chunky yellow-gold band.

Dua Lipa's rumored engagement to actor Callum Turner still appears to belong in the second bucket. After showing what looked like a diamond ring with a thick golden band on Instagram around the holidays, she once again flashed something shiny on her left hand on a "date night" posted to Instagram Stories.

The “Houdini” singer teased fans with several pictures of her diamond sparkler amid reports the actor popped the question over the holidays.

Brief flashes of the ring were still enough for diamond pros to appraise its value. In an interview with The Daily Mail, 77 Diamonds expert Anya Walsh estimated the solitaire diam