Princess Cut Diamond Guide

By Josh Allen, Co-Founder of YourDiamondGuys.com. Fifth generation diamantaire with 30+ years in the global diamond trade. Former supplier to Tiffany & Co., Cartier, and Harry Winston.

A princess cut can be a sharp square value, but the corners, depth, and dark areas need a real check before the price looks attractive.

Princess cuts look simple from the top. Square. Bright. Modern. Then the trade checks the corners, the depth, and whether the center has life.

For natural diamonds, start with GIA. The report gives the first facts worth trusting, but the actual images and video still decide whether the diamond earns the money.

A low price on a princess cut often has a reason. Sometimes the stone carries too much depth. Sometimes the corners are vulnerable. Sometimes the sparkle dies where the buyer expects fire.

What To Check First

The Corners Are Part Of The Purchase

Use the shape durability ranking guide before you choose the setting. Princess corners are beautiful, but exposed corners need respect.

A V prong or protective setting can make the shape much easier to live with.

Dark Corners Are The Warning Sign

A princess cut should not look like four bright edges around a tired middle. Watch the video and look for life across the face.

If the price looks unusually low, check depth, spread, and corner condition before you celebrate.

My Buying Call

Buy the princess cut that looks bright and square, then protect it properly. Do not buy a paper bargain that needs excuses.

Reach out to Rob or me at YourDiamondGuys.com, or book your free consultation. We will look at the actual stone with you. No sales pitch.

How This Connects To The Rest Of The Buy

A princess cut makes the rest of the buy depend on protection and light return. Use the diamond shapes guide to confirm the style, then check shape durability ranking, shape setting compatibility, girdle thickness, and inclusions by shape before you let price make the decision.

That is the order I like. Shape first. Corners second. Video third. Then see if the price still makes sense.

A Buyer Example

Say a buyer sends me two princess cuts with the same carat and color. One has the cleaner looking report. The other looks brighter in the center, keeps the corners from going dark, and has no risky inclusions near the points. I slow down on the second stone if the setting can protect it properly.

The paper is not the prize. The actual diamond is. That is the trade habit buyers need to borrow before they spend real money.

Mistakes I Would Skip

1. Do not buy the report before judging the actual diamond.
2. Do not compare price until the shape passes its visual checks.
3. Do not ignore video, outline, spread, color visibility, or clarity visibility.
4. Do not assume the same spec target works for every shape.

Questions I Ask Before Approval

1. Does the diamond match the job of this page: Choose a princess cut with good brightness and protected corners.
2. Can I see the actual diamond video, not a sample image?
3. Does the shape create any durability, bowtie, windowing, color, or clarity issue?
4. Is the price right for the stone in front of me?

The Beginner's Guide to Finding the Perfect Diamond

Compare Princess Cuts With Real Cut Evidence

Use these sites as proof libraries, not automatic recommendations. I would compare princess cut precision on Whiteflash and Brian Gavin Diamonds, then check the corners, brightness, and actual measurements.

Questions? Reach out directly for a free consultation, or drop them in the Diamond Buyers Academy community — Rob and I answer personally.