The GUILD FOLIO report is issued for collective-grade colored gemstones, and its name is derived from the collection of the works of William Shakespeare published in 1623, The FIRST FOLIO. The text of the GUILD senior report covers the routine test data of gemstones, and details the specific information such as the origin, chemical composition, spectrum, and inclusion characteristics of gemstones. It is an identity symbol tailored for each top gem



Issuing duration: 30 working days

Applicable gemstones: all varieties of colored gemstones