Diamond Quality Factors Explained

By TR GEMS Cut EngineersPublished 2026-04-187 min read
A diagram showing light paths refracting inside a diamond with a perfect cut.

A diamond's brilliance depends on cut quality. At TR GEMS, our engineering team optimizes facet angles and proportions to maximize light output.

The Physics of Diamond Sparkle

When light enters a diamond, it bounces off the pavilion facets and refracts back through the table. If a cut is too deep or shallow, light leaks from the sides, dulling the stone.

Precision Polishing Tolerances

We use digital measuring tools at our Surat facilities to ensure each facet complies with triple excellent parameters.

Frequently Asked Questions

How do crown and pavilion angles affect brilliance?

The crown and pavilion angles must align to bounce light back through the table. Incorrect angles cause light to leak out of the sides, reducing sparkle.

What is the difference between polish and symmetry?

Polish describes the smoothness of facet surfaces. Symmetry refers to the alignment of facet shapes and placements.