# Black Prince's Ruby

> large uncut gemstone set in the UK's Imperial State Crown

**Wikidata**: [Q1106213](https://www.wikidata.org/wiki/Q1106213)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Black_Prince's_Ruby)  
**Source**: https://4ort.xyz/entity/black-prince-s-ruby


## References

1. Freebase Data Dumps. 2013
2. BabelNet