Examples
This chapter gathers the “recipe cards” we reach for most often. Each example pairs a bit of history with a ready-to-run FSL block and an interactive studio embed so you can orbit the stone and start experimenting immediately. Every bracketed literal ([41.0], [35.1184], etc.) in these pages is individually optimisable: plug the spec into the studio, fire up the optimizer, and nudge the angles that matter for your material.
What to expect on each page:
- Narrative context – When and why the cut became popular, plus our notes on how the geometry translates into brilliance vs. profile.
- Complete FSL – Minimal code that you can copy verbatim, then evolve by tweaking literals or inserting your own ideas.
- Interactive Viewer – A live view of the stone that mirrors the FSL block so you can inspect crown, pavilion, and girdle decisions.
- Optimization tips – Suggestions on which tiers to float when you want more brightness, contrast, or scintillation.
Use these examples as launch points: duplicate one of the pages, change the FSL values, and refresh the embed to reflect your own measurements. If you are new to FSL, start with the Brilliant or Step cut pages; if you want to see the optimizer in action, jump straight to the Portuguese and Princess entries where every tier angle is meant to be pushed.