BRASILIA, Brazil – Geologist Brian Cook, owner at Nature’s Geometry, appealed at the ICA Congress for more support for Brazilian artisanal mining communities in order to strengthen the industry. Artisanal miners extract most of the colored gemstones in Brazil, a leading…

BRASILIA, Brazil – Treatments are vital for the colored gemstone supply chain, field gemologist Wim Vertriest of the GIA told the ICA Congress. “Treatment allows us to utilize much more rough,” Mr Vertriest said. “Treatment provides us with a range of…