Our Sales Process
We carefully sort and grade coloured gemstones before selling them at private auction.
Gemfields’ sorting and grading of rough gemstones is a highly skilled process. Rough gems are sorted according to their colour, size, shape and clarity. Consistency is key to buyer confidence.
Gemfields’ ground-breaking auction process transformed the international supply of rubies and emeralds when it was introduced in 2009, bringing transparency and consistency to a previously chaotic practice.
View our Authorised Auction Partners