Our Sydney gem cutter – Tony Maynard has a passionate interest in the evolution of gem cutting throughout history so it was always going to be his gig – sourcing and cutting this gem for Tricia Crowley’s table cut ‘renaissance’ ring. Cubic zirconia was selected for its high refractive index over say pure quartz and also as zircon is a harder stone. The work travelled to and fro between Brisbane and Sydney – each time the back facet angles were adjusted, finally settling on this 40˚ slope. The base point called the culet, has been polished flat, this is where the black dot reflection emanates from. In Georgian paste you see those characteristic  fine black dots showing, in our stone you see this small square showing. Tony talked about early forms of gem finishing being simple “just polishing the existing facets on a naturally occurring octahedral crystal”.