Alexandrite's Gold Bracelet

Bracelet

It's a golden bracelet with a rather simple pattern of circles darker than the gold. A lighter shade of gold is stretched across the bracelet and there's an alexandrite on it. The alexandrite's top half is purple while the bottom half is green.

Gold and alexandrite

10 grams

Before Alexandrite was born?

This bracelet can flash neon colors whenever someone is telling a lie. (Any lie, including a white lie.) The bracelet will not stop until the liar tells the truth.

Alexandrite found it on the shores while she was exploring one day. She and Petrel doesn't know why it flashes neon colors. Oh well, they're probably going to find out...