United Kingdom, March 12 -- Lady Gaga wears a ring containing the blade of grass Michael Polansky used to propose.

The 38-year-old pop star's fiance Michael Polansky proposed to her by wrapping grass around her finger before presenting her with a huge diamond ring - and the singer now wears the sentimental plant in a resin band alongside her pricey sparkler.

During an appearance on 'The Howard Stern Show', she explained: "[Michael] got me two rings and one of them was the blade of grass and that's the first one he proposed with.

"I love them both. But the blade of grass, you can't replace something that has a meaning like that."

Gaga previously admitted Michael used the grass to propose because she had told him that was how she wanted...