Princess Diamond Rings
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Princess Cut Diamond Rings NZ — Geometric Precision, Maximum Sparkle
The princess cut is the most geometric diamond shape in fine jewellery: a perfect or near-perfect square with four sharp pointed corners and brilliant-cut facets that produce fire and sparkle comparable to a round brilliant. It is also the most affordable brilliant cut, priced 20-30% below equivalent round diamonds because its square outline matches the natural crystal shape of diamond rough more efficiently in cutting. And it is one of the newest major diamond shapes, created in 1979 — making it simultaneously the most modern and one of the most popular squares available.
At TJ Diamond, princess cut diamond rings are handcrafted in our Auckland studio for every occasion — engagement, anniversary, fashion, and self-purchase. Every princess cut ring we make is set with V-shaped corner prongs as standard, regardless of the ring style, because the corner protection requirement applies equally to engagement rings, anniversary bands, and fashion pieces.
The 1979 Origin — A Square Built for Brilliance
The princess cut was created in 1979 by diamond cutters Betazel Ambar and Israel Itzkowitz. It is one of the newest major diamond cuts in widespread use — unlike the oval, pear, and cushion, which have histories stretching to the 1960s, 1400s, and 1700s respectively, the princess cut is a product of the modern diamond industry. Ambar and Itzkowitz designed it specifically to solve a technical problem: how to produce a square diamond with maximum brilliant-cut light performance while wasting as little of the original rough crystal as possible.
Their solution — a square pyramid outline that maps closely onto the natural octahedral shape of diamond rough — meant that two princess cut diamonds could be produced from a single octahedral crystal with minimal waste. This manufacturing efficiency is built directly into the princess cut's price advantage over round brilliants and is why the shape has grown consistently in popularity since its introduction.
Created in 1979, the princess cut is one of the newest major diamond shapes. Its 20-30% price advantage over round brilliants is not a quality compromise — it is an engineering efficiency.
Corner Vulnerability — The Safety Requirement for All Princess Rings
The princess cut's four sharp 90-degree corners are its most structurally vulnerable points. This is not specific to engagement rings — it applies equally to any princess cut diamond ring regardless of its occasion or ring style. When a corner receives an accidental impact, the force concentrates at the single sharp edge of the corner, which is susceptible to chipping.
V-shaped corner prongs, also called chevron prongs, cradle each corner edge on both sides, absorbing impact across the prong rather than allowing it to reach the diamond corner directly. A standard round prong at a princess cut corner leaves the point partially exposed. TJ Diamond sets every princess cut diamond ring with V-shaped corner prongs as standard. Our jewellers confirm all four corner prongs are correctly shaped before any princess cut ring leaves our Auckland studio, regardless of whether the ring is for an engagement, an anniversary, or a fashion purchase.
Chevron Facet Patterns — The Internal Quality Choice
Princess cut diamonds are produced with different numbers of chevron or wing-shaped facets on the pavilion, which affect the visual character of the sparkle. This is a distinction most buyers are not aware of, and one that significantly influences the ring's appearance:
Two chevron patterns: Larger, more defined facets produce bold, high-contrast flashes of light similar in character to a round brilliant. The sparkle is open and distinct — large blocks of white light and rainbow fire. Best for buyers who want the princess cut's square geometric outline with the most round-brilliant-like light performance.
Three chevron patterns: An intermediate facet size, balanced between the bold contrast of two chevrons and the more intricate mosaic of four. A versatile middle-ground option.
Four chevron patterns: The smallest individual facets produce the most intricate, scintillating sparkle — a princess-specific geometric light pattern that is distinctly different from a round brilliant and uniquely characteristic of the princess cut at this facet count. Best for buyers who want the most distinctly princess-specific visual character.
The chevron count is determined when the stone is cut and cannot be changed. This distinction must be assessed in person — photographs consistently fail to accurately represent the difference between two and four chevron patterns under real-world lighting conditions. TJ Diamond holds examples of different chevron counts in our Auckland studio for direct comparison.
Ring Styles for Princess Cut Diamonds
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Engagement ring solitaire, princess engagement rings: a four-corner solitaire with V-prongs is the most classic setting. The full square face is exposed, allowing maximum light entry and the cleanest appreciation of the geometric outline.
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Halo ring, halo engagement rings: a round diamond halo surrounding the princess creates visual contrast between the geometric square centre and the circular accent diamond ring. One of the most popular princess cut configurations.
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Channel-set anniversary band: princess cut diamonds set in a channel along a band align their flat sides precisely with the channel walls, creating a very clean, architectural composition. One of the most popular anniversary ring styles for the princess cut.
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Bezel ring, bezel engagement rings: a full metal rim encircles the princess outline including all four corners, providing maximum corner protection. The sleekest and most modern princess setting.
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Yellow gold solitaire, yellow gold engagement rings: yellow gold and the princess cut create a bold, geometric fashion ring with strong contemporary character. The warm metal creates contrast with the cool geometric diamond precision.
For buyers considering both square options, the radiant cut differs from the princess in its trimmed corners, making it slightly safer for daily wear. See our radiant engagement rings collection for a direct comparison.
Price Advantage Over Round Diamonds
At equivalent quality grades, princess cut diamonds are typically priced 20-30% below round brilliant diamonds. A 1-carat princess measures approximately 5.5mm across each side — smaller in face-up diameter than a 1-carat round (6.4mm) but more affordable for the same carat weight at the same quality. For buyers who want maximum brilliance within a specific budget and are not specifically seeking a circular outline, the princess cut offers the same class of brilliant light performance at a meaningfully lower per-carat price than a round.
Natural and Lab-Grown Princess Cut Diamonds
Both natural and lab-grown princess cut diamonds are available at TJ Diamond, each IGI or GIA certified and individually assessed for corner condition and chevron facet pattern. Lab-grown princess cut diamonds extend the price advantage further, making larger, more visually impactful stones achievable across all occasions. Explore our lab-grown diamond collection for the full range within your budget.
The TJ Diamond Commitment
Every princess cut diamond ring is completed in our Auckland studio with V-shaped corner prongs confirmed on all four corners before the ring leaves. From $999 NZD across all ring styles and occasions. Contact us to book a studio consultation, where our jewellers will show you princess cut diamonds of different chevron facet counts side by side.
Our lifetime warranty covers all TJ Diamond princess cut rings including V-corner prong maintenance, stone resetting, and professional polishing for the life of the ring.