Reference

Resources

GemCad guidance, sourcing advice and quick references to support the guides elsewhere on this site.

How to model, check, and scale a facet design before you ever touch a lap.

How to evaluate rough material and where lapidaries actually source it.

Quick reference

The progression we use, at a glance

Grit	Stage	Lubricant
3,000	Pre-cut	Water drip
8,000	Pre-polish	Light oil
100,000	Final polish	Diamond spray, commercial or homemade with alcohol

Scale a design to your rough before cutting a single facet.