a crystal lamp

Clear white light emanates from the white crystal hung within a fine chain net of silver. Its inner radiance is both like sunlight in its morning glory and moonlight on the waters of the Mirrormere, for it was made in Lorien by the most skilful of elven craftsmen with the blessing of Lady Galadriel. The light of the Evening Star is imprisoned within its crystal heart. The power that made it is that of the land of Lorien itself, and with this power it shall burn or fade.

You need to pick it up first.

You identify a crystal lamp.
It is a glowing light source.
It weighs one pound and two ounces, and it is worth about eighty-five copper.
Its keywords are lamp, crystal, and silver.