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Our Sales Process

We carefully sort and grade coloured gemstones before selling them at private auction.

Sorting and Grading

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.

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Auction Process

Gemfields’ groundbreaking 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.

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View our Authorised Auction Partners