About: http://webisa.webdatacommons.org/208436893

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	They accomplish this by polishing the stones and determining whether they are natural or synthetic.
http://www.w3.org/ns/prov#wasQuotedFrom	jewelry-secrets.com