Credit: Pascal Le Segretain/Getty Images;

Seems Lily Allen didn't waste any time getting to the altar.

On Tuesday -- just two weeks after news broke that she was engaged to her business owner beau Sam Cooper, 32 -- the British singer, 25, posted a picture of her freshly-manicured left hand on her blog.

Adorning her fourth finger? Her engagement sparkler, plus what appears to be a wedding ring.

Though Allen remained coy about possible nuptials, writing only, "A girl can't do Manhattan sans manicure," pals say she and Cooper are a perfect match.

Says the insider of the duo, who suffered a tragedy in November when a six-months pregnant Allen had a miscarriage, "Their painful loss only brought them closer together."