Phony Gemstones

Exploration Stage: Santa's Workshop
From: Cardsharp
Description: Yes, my friend! Even I, an expert at winning the rarest items, writes a letter to Santa every year. I have every since I was little! This year I asked Santa to give me a valuable accessory: a box for my magical deck of cards, encrusted with rubies and emeralds. Help me find this valuable case.
Completed: What a disaster! I was looking forward to getting that box, but the lid's broken, and the gemstones it's decorated with aren't real, they're just glass! I demand material compensation for this! We need to figure out who took it upon themselves to ruin Christmas.