some bluish-white petals

The petals are white, with a slight darkening to blue at one end. A very subtle scent is associated with them.

They are some bluish-white petals.
They weigh less than an ounce.

You identify some bluish-white petals.
They are plants.
They weigh six drams, and they are worth about eighteen celeb.
Their keywords are petals, bluish, white, foxglove, and herb.