Garry Holloway

Who is Garry Holloway?

Garry Holloway FGAA, DipDT, JAA Appraiser, left a career in geology and in 1976 established Melbourne diamond design award winning jeweller, Precious Metals. In 1984 he studied the Fire Scope while undertaking the Gemological Association of Australia’s Diamond Diploma. This led to a long and passionate interest in diamond cut.

After the publication of the Gemological Institute of America's ‘brilliance’ report in 1998 this passion became a crusade to improve the cut quality of all diamonds.

Garry developed the Holloway Cut Adviser system in 2000, and released a portable Ideal-Scope in 2001. In 2004 he was both one of the four Cut Group organizer and a speaker at the 1st International Diamond Cut Conference in Moscow, Russia. The HCA has been used to grade the cut quality of millions of dollars of diamonds in its first year, and billions over the past decade. Holloway's HCA patent was granted on 31 July 2007. His diamond-cut consultancy has strong alliances with leading international diamond researchers and websites.