You find Libra Kell at the Fancy Drake, sipping an exotic ale from a bottle. Her black eyes twinkle as the daylight streams in from the slatted windows.
When you present her with the object, she turns it over in her hand, studying its intricacies. She waves her hand in front of it, her fingertips glowing electric blue as she attempts to discern the nature of the necklace.
She looks puzzled.
Libra places the gem on the bar and withdraws a handful of dust from a pouch in her pocket. She sprinkles the dust in a circle around it as she appears to prepare a ritual.
"Ye're gonna have to clean that up, Libra," mutters the dwarf behind the counter.
She shushes him absentmindedly and peers at the gem. Her eyes seem vacant.
After several minutes of this, she looks up at you.
"It's not magical. It's a pretty thing, but hardly unique. Was this what you found in your friend's house?"