Gem Engine — cutting workbench

Gem Engine cutting workbench

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Design

Refractive index

Material

Body colour

Transparency66%

Render · ray tracer

Lighting model

# Bounces8

Colour density1.0

Symmetry

8-fold

Mirror image

Tier

Angle from table°

Index (gear tooth)

click the gear to position the facet set

Depth (distance)

drag right to bring the cutting plane in · or click a meetpoint to lock depth

Optimise angles · for this material

tunes crown & pavilion angles for max return at R.I. 1.60

Exit cones

in-stone path light source TIR exit click the gem to fire · drag to rotate

Range ±50° ISO COS Window Head shadow Table values

tier 0 / 0 blank (preform)

New stone

cut from a cylindrical preform

cut facet pending cut blank

drag to rotate · scroll to zoom

Views

Plan

Profile

Cutting sequence

Readout

Facets

Meets

Width

—

L/W

—

T/W

—

P/W

—

C/W

—

Vol/W³

—

R.I.

1.60

Crit. angle

—

Brilliance

—

Fire

—

awaiting first cut