Yellow shard

"This must have broken off one of the lights at the construction site."

The Yellow shard (Yellow glass shards before picking up) is an item that you find In front of the Berlin museum after talking to Max there.

You can find it on the right screen edge at a scaffolding.

Mission
You have to combine it with Nina kalenkow's sunglasses, this combination named Green shard must be inserted in the Diadem.

Trivia

 * It's named yellow shard, but in fact it is more orange.
 * Lisa says, she was driven trough a shard with her bicycle, and that also, when you already have picked up the shard.

Gelbe Scherbe Trozo de cristal amarillo