Pear Cut Lab Grown Diamond: The Complete Buying Guide

A pear cut lab grown diamond is a teardrop-shaped stone with one rounded end and one tapered point, grown in a lab from real diamond material and certified by IGI or GIA. The best pear diamonds have a length-to-width ratio between 1.45 and 1.75, a point that lines up dead center with the rounded end, and little to no visible bow-tie effect across the middle. Because it is lab grown, you pay roughly 40-70% less than a comparable mined diamond for the same look.

That is the short answer. Below is everything worth knowing before you spend, written plainly so you can judge a stone yourself instead of trusting a sales pitch.

What defines a beautiful pear cut

A pear (sometimes called a teardrop) is essentially a round brilliant on one end and a marquise point on the other. That hybrid is exactly why it can look so good and also why it is easy to get wrong. A well-cut pear has even brilliance from the shoulders down to the tip, a point that does not look stubby or overly sharp, and shoulders that curve smoothly without flat spots or sudden angles.

When you look at a pear face-up, the rounded end should be a clean half-circle, the two sides should mirror each other, and the belly (the widest part) should sit in a graceful curve rather than bulging or pinching. If one shoulder looks higher than the other, or the point drifts off to one side, your eye will catch it even if you cannot name the problem.

The ideal length-to-width ratio

Length-to-width ratio is the single number that controls the overall silhouette. You take the length of the stone and divide it by the width. A ratio of 1.50 means the diamond is one and a half times as long as it is wide.

• 1.45-1.55: A fuller, rounder pear. Looks larger across the finger and is very forgiving. A safe pick if you are unsure.
• 1.55-1.65: The classic teardrop most people picture. Balanced and flattering on most hands.
• 1.65-1.75: A longer, more dramatic pear. Slims the finger and reads elegant, but goes too narrow past this range.

The 1.45-1.75 window is where pears look intentional. Below 1.45 the shape starts to look like a slightly squashed round, and above 1.75 it gets thin and the point becomes fragile. Ratio is personal taste within that band, so the right number is the one that looks right to you. Pull up a few stones side by side in our lab grown diamond search and you will see the difference between a 1.50 and a 1.70 immediately.

What to watch for before you buy

The bow-tie effect

Almost every pear (and oval and marquise) has some bow-tie, a darker shadow shaped like a bow tie that runs across the center of the stone. It comes from how light leaks out instead of bouncing back to your eye. A faint bow-tie is normal and not a defect. A heavy, dark bow-tie that swallows the middle of the diamond is a real problem, and it is the number one thing people regret missing.

Here is the catch: a grading report will not tell you how bad the bow-tie is. You have to look at a video or a real photo of the actual stone, face-up, in normal lighting. If the center goes dark and dead, skip it. Every diamond on a good site should have its own video, so use it.

Symmetry of the point and shoulders

Symmetry is what makes a pear look polished rather than homemade. Check three things. First, the point should sit exactly in line with the center of the rounded end. Draw an imaginary line down the middle and the tip should land on it. Second, the two shoulders should match, with the same curve on each side. Third, the wings (the curved sides between the belly and the point) should not be too flat or too rounded, since flat wings make the stone look narrow and bulging wings make it look like it is leaking out the sides.

On the certificate, look for symmetry and polish graded Very Good or Excellent. That covers the technical side. Your eyes cover the rest.

Protecting the point

The point is the most vulnerable part of any pear. It concentrates a lot of the stone in a thin tip, so it can chip if it is left exposed. The fix is simple: a setting with a V-shaped prong, called a chevron prong, that wraps the tip and shields it. We will come back to that below.

The settings that suit a pear

The pear is one of the most flexible shapes for setting styles, which is part of its appeal. A few combinations consistently look the best.

• Solitaire with a V-prong: The cleanest way to show off a pear. A single band, five or six prongs, and a chevron prong guarding the point. Lets the shape speak for itself.
• Hidden halo or full halo: A ring of smaller diamonds around the center makes the stone look bigger and adds sparkle. A pear halo follows the teardrop outline, so it has to be made for the shape, not borrowed from a round.
• Three-stone: A pear center with two tapered side stones, often pears or trillions, for couples who want more presence.
• East-west: Setting the pear sideways across the finger instead of pointing up the hand. A modern look that is having a moment.

One practical note: a pear has a clear up and down, so the wearer needs to keep it pointing straight. A snug fit and a setting that holds the orientation help. If the ring spins, the point ends up sideways. Browse pear-friendly mountings on our pear lab grown engagement rings page to see these styles on the actual shape.

How a pear prices versus other shapes

Pears are one of the better values in diamond shapes, and that is true for both lab grown and mined. Round brilliants are the most expensive cut per carat because they waste the most rough material and demand the most precise cutting. Fancy shapes like pear, oval, and marquise keep more of the rough, so they cost less for the same carat weight, often 10-25% under a round.

On top of that shape discount, choosing lab grown takes another roughly 40-70% off compared with a mined diamond of the same size and quality. Stack the two and a pear lab grown diamond can be one of the largest, brightest stones you can get for a given budget. Pears also carry their weight well in length, so a pear can look bigger face-up than a round of the same carat.

Two honest caveats. First, lab grown diamonds have lower resale value than mined diamonds, so treat the ring as something to wear and keep, not an investment to flip. Second, prices move with the market, so we quote ranges rather than fixed numbers. To compare real, in-stock options by ratio and budget, the diamond search tool filters live inventory.

Frequently asked questions

Are pear cut lab grown diamonds real diamonds?

Yes. A lab grown diamond is chemically and optically identical to a mined diamond, just grown in a controlled lab instead of underground. They are graded by the same labs, IGI and GIA, on the same 4Cs scale. If you want the full breakdown of cut, color, clarity, and carat, our 4Cs guide walks through each one.

What ratio should I choose for a pear?

Anything from 1.45 to 1.75 looks balanced. Around 1.50-1.55 gives a fuller, rounder teardrop, while 1.65-1.75 gives a longer, more elongated look that slims the finger. Within that range it is personal preference, so compare a few side by side before deciding.

How do I avoid a bad bow-tie?

Look at a video of the exact stone, not a stock image or just the certificate. A light shadow across the center is normal and fine. If the middle of the diamond looks dark and lifeless, pass on it and pick another. The bow-tie is not on any grading report, so your own eyes are the only check.

Ready to find your pear

A great pear comes down to a few things you can actually verify: a ratio in the 1.45-1.75 range, a centered point, even shoulders, and a clean face-up with no heavy bow-tie. Get those right and a lab grown pear gives you a bright, generous stone for a fraction of a mined one. Every Diyona diamond is IGI or GIA certified, made to order, and backed by a 30-day return window and a lifetime warranty on manufacturing defects. Start by exploring our pear lab grown diamonds, or see the full range of lab grown engagement rings when you are ready to build yours.