Cut is King — The Secret to Diamond Sparkle

Whether you choose lab-grown or simulated, cut determines brilliance, fire, and scintillation.

What is Diamond Cut?

Diamond cut refers to how well a stone’s facets interact with light. It’s not the shape— it’s the precise proportions, symmetry, and polish that unlock maximum sparkle.

Brightness

How much white light the stone returns to your eye.

Fire

Dispersion of light into vivid rainbow flashes.

Scintillation

The sparkle you see as the stone, light, or viewer moves.

Why Cut Matters

Why Cut Matters - Ideal vs Poor Cut Diamond

The Agape Difference

Every stone is cut against tight proportion targets (table %, depth %, crown & pavilion angles) and inspected for symmetry and polish to ensure outstanding light performance—regardless of material.

Precision cutting and strict symmetry checks

Ideal-style proportion targets for light return

Backed by our Lifetime Warranty & easy 30-day returns

See the Sparkle Yourself

Explore our collections and filter by cut to find the perfect stone for your style and budget.

Learn the 4Cs

A diamond’s beauty is defined by four key factors: Color, Cut, Clarity, and Carat. Explore each to shop with confidence.

Color

How colorless the diamond appears. Less color generally means higher grade and more icy brilliance.

Read about Color

Cut

The most important C for sparkle. Proportions, symmetry, and polish control brilliance, fire, and scintillation.

Read about Cut

Clarity

The presence of internal or surface characteristics. Many are microscopic and not visible to the naked eye.

Read about Clarity

Carat

The diamond’s weight. Carat influences size on hand—but cut quality can make stones look larger or smaller.

Read about Carat