Princess Cut Lab-Grown Diamonds: The Complete Buying Guide
The princess cut — the most popular fancy shape diamond in the world — delivers a striking combination of geometric precision and exceptional brilliance. This square-to-rectangular lab-grown diamond shape maximizes fire and sparkle through its unique chevron faceting pattern, offering a contemporary alternative to the classic round brilliant.
Understanding the Princess Cut
Invented in 1980 by Betzalel Ambar and Israel Itzkowitz, the princess cut is the youngest major diamond shape. It was designed to combine the exceptional brilliance of the round cut with a square silhouette. The result is a shape that wastes less rough crystal during cutting (approximately 80% yield vs. 40-50% for rounds), which contributes to its more accessible pricing.
The princess cut features 57-76 facets arranged in a distinctive pattern of chevrons (V-shaped facets) on the pavilion. The number of chevron rows directly affects the stone's light behavior and visual character.
Chevron Patterns: The Key Differentiator
Two-Chevron Pattern
Broader facets produce larger, more distinct flashes of light. This creates a bold sparkle pattern similar to what you'd see in a step cut, but with brilliant-cut fire. Best for larger stones where the pattern is visible and dramatic.
Three-Chevron Pattern
The most common and balanced option. Produces a mix of broad and fine sparkle that most people find appealing. Offers good scintillation while maintaining visible facet pattern.
Four-Chevron Pattern
Many smaller facets create a "crushed ice" effect with intense all-over sparkle. Individual facets become difficult to distinguish — the entire stone appears to shimmer. This pattern is most effective at hiding clarity characteristics but may appear "busy" in larger stones.
Ideal Princess Cut Proportions
| Parameter | Ideal | Acceptable |
|---|---|---|
| L/W Ratio | 1.00-1.05 (square) | 1.00-1.10 |
| Depth % | 64-75% | 58-78% |
| Table % | 67-72% | 62-77% |
| Polish | Excellent | Very Good |
| Symmetry | Excellent | Very Good |
The Square Factor
For a visually square princess, the L/W ratio should be 1.00-1.05. Ratios above 1.05 create a noticeably rectangular shape. Both are valid choices — square is classic, rectangular offers an elongated alternative — but most buyers seeking a "princess cut" expect square.
Depth Consideration
Princess cuts carry proportionally more weight in their depth compared to rounds. This means a 1-carat princess may appear slightly smaller face-up than a 1-carat round — see our carat vs. visual size guide. However, the geometric shape creates a distinctive, modern presence that compensates for slightly smaller measurements.
Color and Clarity for Princess Cuts
Color
Princess cuts are moderately good at masking body color. The intense brilliance disperses light in ways that reduce the visibility of faint yellow:
- White gold/platinum: G-H for colorless appearance (D-F if you want absolute perfection)
- Yellow gold: H-J works beautifully — our metal guide explains why
Clarity
Princess cuts with more chevron rows hide inclusions better. General clarity recommendations:
- 4-chevron: SI1 often eye-clean — the scattered sparkle pattern hides inclusions well
- 2-3 chevron: VS2+ recommended — larger facets reveal more
- Critical: Avoid inclusions near the corners — this is where princess cuts are most vulnerable to chipping
The Corner Vulnerability
The princess cut's sharp, pointed corners are its Achilles heel. Unlike the emerald cut's cropped corners or the cushion cut's rounded corners, the princess's sharp 90-degree angles are vulnerable to chipping if struck directly.
Protecting Princess Cut Corners
- V-prongs: Specially designed prongs that cover each corner point — the standard and recommended approach
- Bezel setting: The metal rim completely protects all corners — safest option for active lifestyles
- Channel setting: For princess-cut bands — the channel walls shield vulnerable corners
When inspecting a princess cut, check the corners for any existing damage (feathers or chips) and ensure the setting adequately protects all four points.
Best Settings for Princess Cuts
Four-Prong with V-Prongs at Corners
The classic choice for solitaire princess cuts. Four V-shaped prongs grip each corner, simultaneously securing the stone and protecting its most vulnerable points.
Halo
A square halo around a princess cut creates a bold, geometric frame of brilliance. The accent diamonds soften the angular shape slightly while dramatically increasing visual size.
Channel Band
Princess cuts are arguably the BEST shape for channel settings — their square shape allows them to sit flush against each other with no gaps, creating a continuous surface of brilliance. Princess-cut channel wedding bands and eternity bands are stunning.
Three-Stone
A princess center with matching princess side stones creates a powerful geometric trio. The angular shapes amplify each other's contemporary character.
Princess Cut for Men
The princess cut is the most popular diamond shape for men's jewelry. Its angular geometry and modern origin read as masculine and contemporary. Channel-set princess cuts in wide bands create striking men's wedding rings.
The Lab-Grown Princess Advantage
Princess cuts already offer excellent value due to their efficient use of rough crystal. Combined with lab-grown pricing, this makes the princess cut one of the most accessible paths to an impressive diamond — a 2-carat princess with excellent sparkle and high clarity becomes remarkably accessible.
Recommended Pieces
- Ladies Earrings 3Ct Princess/Round 14K Yellow Gold
- Eternal Blush Collection 14K White Gold 1 1/4Ct Round/Princess
- Men'S Ring 2Ct Princess 14K White Gold
Browse our princess cut collection to discover this bold, modern shape, or compare with round brilliants and cushion cuts.