LOVE IS IN THE AIR: Joy of every woman is to seeing her man proposing and taking her to the altar in exchange of vows. It is joyful, goodness and wonderful of all.
The X Factor judge looked thrilled as she tried bands on her left hand but, teasingly, did not emerge with one on her ring finger.
She was measured up though and onlookers were left wondering whether an engagement might be in the air.
Nicole, 38, and Grigor, 25, were at the exclusive Gold For Ever jewellery store in Portofino, Italy.
The shop boasts on its website that celebrity clients have included Sir Rod Stewart, Hugh Grant and even RINGO Starr.