Science ensures a Holloway diamond™ sparkles like no other

For over 40 years, Garry Holloway has helped shape the science of diamond cut design and optical performance. As the inventor of the Ideal-Scope and ASET light performance tools, Holloway Cut Adviser (HCA) and several related patents — used worldwide by leading gemmologists, polishers and dealers — his work has contributed to diamond beauty.

This landmark paper, co-written by Garry and leading international scientists’ remains one of the most important studies ever published on diamond brilliance and human vision.

Links to some of Garry’s diamond patents and co-authored patents can also be found here.