Catalogue

Gem cuts: 3D models and faceting diagrams

31 cuts · 6 model formats · GemCad cutting files · measured in 7 gemstones

Light maps are face-up, in diamond unless a cut was designed for another stone. Every picture is drawn from the cut's own model.

Brilliants

Round brilliants cut to the proportions published in 1919, from the 73-facet round to our finest subdivision.

Jewellery cuts

The shapes jewellers set every day: fancy brilliants, step cuts and traditional patterns.

Historic cuts

The evolution of the brilliant in order, from the single cut to the 1919 round, rebuilt from primary sources.