# precious stone

> most valuable class of gemstone, generally diamond, sapphire, emerald, and ruby

**Wikidata**: [Q4990682](https://www.wikidata.org/wiki/Q4990682)  
**Source**: https://4ort.xyz/entity/precious-stone


## References

1. Integrated Authority File
2. Art & Architecture Thesaurus
3. National Library of Israel Names and Subjects Authority File
4. CC 6
5. KBpedia