Cut registry › Jewellery cuts › Pear
Jewellery cuts · Elongated brilliant
Pear Shaped Diamond
Half oval, half marquise.
A pear is the only common shape that is asymmetrical along its own long axis. That is what
makes it graceful, and it is also why its light is distributed the way it is.
- Facets
- 64
- Length : width
- 1.50
- Table
- 55.1%
- Depth
- 60.0%
- Pavilion
- 34.9°
The short version
A pear shaped diamond is a brilliant cut with one rounded end and one point, giving a teardrop
outline, and typically 56 to 58 facets.
It sits between the oval and the marquise: it keeps the oval’s soft curve at one end and
takes the marquise’s point at the other.
Definition
What is a Pear cut diamond?
A pear has its own anatomy, and the vocabulary is worth knowing because it is what a grader and
a cutter will use. The rounded end is the head. The curves either side of it are the
shoulders. The widest part is the belly. The long tapering sides running down to
the tip are the wings, and the tip itself is the point.
Every common fault in a pear has a name in that list. High shoulders make the head look boxy.
Uneven wings make one side of the stone look bent. A point that does not sit directly below the
apex of the belly makes the whole outline read as crooked, and it is the first thing the eye
catches.
The cut is old. A pear-shaped brilliant is generally attributed to Lodewyk van Berquem of
Bruges in the fifteenth century, which makes it one of the longest-lived outlines still in
regular production.
Proportions
Pear diamond proportions, and what to look for
Commonly cited ranges on the left, our measured reference stone on the right.
The pear’s ratio is more setting-dependent than most: narrow pears suit drop earrings,
fuller ones suit solitaires.
As with every fancy shape, GIA issues no cut-quality grade for pears. Symmetry
and polish are graded. On a pear, symmetry is the grade that carries the most information,
because the shape has more ways to go wrong than any other in common use.
The bow-tie
The bow-tie effect in pear shaped diamonds
A bow-tie is a dark band lying across the waist of an elongated brilliant. It is a shadow rather
than a fault: the facets beneath it draw their light from the part of the sky that your own head
and shoulders are blocking as you look down at the stone.
That distinction decides what you can do about it. Light leakage is a failure of the pavilion
angles, it is present under any light, and it shows on a light-return map. A bow-tie only appears
when something is standing in the way of the light, which is why it darkens and lifts as you move
your hand. A good deal of published advice calls the bow-tie a leak. It is not, and the two want
different remedies.
Some central contrast is inherent to the shape, and we will not pretend otherwise. GIA describes
the mechanism plainly: the band darkens as the difference between length and width grows, and as
variation in the pavilion angle becomes more extreme. A well-cut stone reduces it. Nothing
eliminates it.
What we can and cannot measure. Our engine illuminates from a narrow
overhead cone and contains no observer, so by construction it cannot cast a head shadow, and our
reference geometry for this shape carries no twist in the pavilion mains. We tested for a bow-tie
twice, once under the standard face-up cone and once under full-hemisphere light with a modelled
observer blocking the central 25°, and found none in either run while the round-brilliant
control behaved exactly as it should. So we do not publish a bow-tie severity figure for this cut.
We would rather leave the column empty than fill it with a number we cannot stand behind.
What we measured instead, and it is unusual. A pear is asymmetrical along its length, and
its light is asymmetrical to match. Binning every returning ray by where it leaves the crown,
our reference pear returns 61.2% at the rounded head and 31.7% at the point, with
77.8% across the belly. The point of a pear returns roughly half what the head does. No
other shape we measure is lopsided in this way, and no competitor page mentions it.
Light
How light behaves in a pear cut
Measured on the census that runs on every cut on this site: 3,200 rays face-up, 2,200
at a 20° tilt, on exact facet geometry, against T57 as the standard.
Our reference pear returns 53.36% of entering light usefully against the round
brilliant’s 92.28%, and leaks 21.60% against 1.88%. Its Global score is
71.55 against 88.61, a gap of 17.06 points.
At 64 active facets it scores 75.88 on scintillation, below the oval and the
marquise, both of which carry more facets. Its fire reads 83.80. A pear produces broader,
less busy flashes than an oval does, which is consistent with how the two look side by side.
Its weakest axis is tilt. The pear holds 79.72 of its face-up return at a 20° tilt where
the standard holds 90.41, so it dims sooner than a round brilliant as the hand turns.
Where the light is: useful return from point to head
31.7%
Point
38.3%
77.8%
Belly
86.3%
61.2%
Head
Five equal bands along the long axis, point on the left, head on the right, each ray
binned by the point on the crown it leaves through. This is the only shape we measure whose
profile is asymmetrical, and it is asymmetrical by a wide margin. Setting the point in a V-prong
protects it mechanically. Nothing protects it optically.
Variants
The library carries two pears
Both are pear modified brilliants and both are measured on the protocol above. They
are the same shape cut to different proportions, which is exactly the variation you meet in the
market.
They finish within a fifth of a point of each other on Global and get there
differently: the Teardrop carries more facets and more fire, the reference pear returns more
light and leaks less. Two stones described by the same three words on a report. The Teardrop has its own page.
Against the standard
Pear versus the round brilliant
Light return. 92.28% for the round against 53.36% for the pear, on identical
protocol. The outline costs light, and the point costs more of it than any other part.
Sparkle character. 64 facets against 57 gives the pear a slightly
denser flash pattern, and 83.80 on fire against 78.85.
Movement. The round holds 90.41 of its return under tilt; the pear holds
79.72. In practice a pear rewards being looked at straight on more than a round does.
Durability. The point is the pear’s one real vulnerability, and it is a genuine
one. A V-prong, a bezel or a halo makes a pear as wearable as any brilliant. An exposed point
in a plain claw setting is asking for trouble.
Price. Generally less per carat than a comparable round.
The baseline for all of this is the round brilliant itself. Its facet plan is set out in
the anatomy of a round brilliant, and the measured
standard we compare against is T57, the stone Tolkowsky published
in 1919.
Put them side by side →
Materials
Pear in diamond, moissanite and cubic zirconia
In moissanite the pear returns 49.11% and scores 72.94 Global, leaking 21.67%.
Its fire climbs to 95.11 from 83.80 in diamond, which is the trade-off moissanite always
offers: more colour, less white light back.
In cubic zirconia it returns 58.98% for 72.38 Global. Zirconia’s lower
refractive index changes the critical angle and, on this geometry, holds the light better than
diamond does while giving up tilt stability.
Watch the same outline change material in the Index. The facet plan
stays fixed and only the refractive index moves, which is the cleanest way to see how much of a
stone’s behaviour belongs to its shape and how much to what it is made of.
Trade-offs
What the pear cut gives, and what it costs
In its favour
- A distinctive outline that reads larger on the hand than a round of the same weight.
- Elongates the finger when worn point outward.
- Works east-west and in toi et moi settings, which few shapes carry well.
- Costs less per carat than a comparable round.
- Hides its own inclusions reasonably well through brilliant faceting.
Against it
- The point is genuinely vulnerable and needs a V-prong, bezel or halo.
- Returns 53.36% of entering light against the round brilliant’s 92.28%.
- The light is markedly lopsided: 61.2% at the head against 31.7% at the point.
- Holds only 79.72 of its return under a 20° tilt, against 90.41 for a round.
- More ways to be cut badly than any other common shape, and no GIA cut grade to catch it.
Questions
Pear cut diamonds: frequently asked questions
The questions buyers actually ask, answered in full. Where the answer is
ours to prove, the figure is measured on the Index; where it is an
established gemological fact, it is stated as one.
What is a pear shaped diamond?
A pear shaped diamond is a brilliant cut with one rounded end and one point, forming a teardrop outline, usually with 56 to 58 facets. It is also called a teardrop cut. The outline is generally attributed to Lodewyk van Berquem of Bruges in the fifteenth century.
Do pear diamonds have a bow-tie, and what causes it?
Most do to some degree. The bow-tie is a shadow, not a leak: the facets across the waist draw their light from the part of the sky the viewer’s head and shoulders block. GIA describes it as darkening as the difference between length and width grows and as pavilion angle variation becomes more extreme. Ask to see the stone move on video, because a bow-tie that lifts with movement is behaving normally.
What is the best length-to-width ratio for a pear?
The classic range is 1.45 to 1.75, with roughly 1.55 to 1.60 regarded as the sweet spot for a solitaire. It is genuinely preference-driven and setting-driven: narrow pears suit drop earrings, fuller pears suit rings. Our reference pear sits at 1.50.
What depth and table percentages should a pear have?
The trade commonly cites 60% to 66% depth and 54% to 65% table. Light return falls away outside those ranges, shallow stones passing light through the pavilion and deep stones burying weight below the table. Our reference pear measures 60.0% depth and 55.1% table.
Which way should a pear-shaped diamond point?
Conventionally the point faces the fingertip, which lengthens the finger. There is no rule: east-west settings and toi et moi pairings both place a pear differently on purpose, and both are long-established. Wear it whichever way you prefer.
Are pear diamonds durable, and can you wear one every day?
Yes, provided the point is protected. A V-prong, a bezel or a halo shields the one vulnerable part of the stone, and with that in place a pear wears like any other brilliant. An exposed point in an ordinary claw setting is the arrangement that leads to chips.
How do I check a pear’s symmetry?
Look for shoulders that match each other and do not sit too high, wings that curve evenly with no straight sections, and a point that lines up directly below the apex of the belly. Uneven shoulders and bent wings are the classic faults, and both are visible face-up without magnification.
What is the difference between a pear and a marquise?
A pear has one rounded end and one point, which reads softer and more graceful. A marquise has two points and reads sharper and more dramatic. On our engine the marquise returns more light, 92.28% being the round-brilliant reference for both, and the pear distributes what it has far less evenly.
Are pear diamonds cheaper than round diamonds?
Generally yes, per carat, at comparable colour and clarity, because cutting a pear wastes less rough than cutting a round. The size of that gap moves with market demand, so treat any fixed percentage as a snapshot rather than a rule.
Do pear diamonds look bigger than a round of the same carat?
Usually, because the weight is spread over a longer outline so more of the stone faces up. We deliberately do not quote our Index spread axis in support of this, because that axis is derived from depth alone and takes no account of outline. Compare face-up millimetres instead.
Does GIA give pear diamonds a cut-quality grade?
No. Cut grades are issued for round brilliants only. A pear’s report carries symmetry and polish grades, which describe finish rather than light performance, and on a pear the symmetry grade is the one worth reading closely.
Method
Ray census
Monte-Carlo on exact facet geometry: 3,200 rays face-up plus 2,200 at
20° tilt, cosine-weighted from a 7° near-vertical cone. Useful light is what exits through
the crown within 64° of vertical. The same protocol runs on every cut on this site, so the
figures are comparable to each other.
What the figures describe
They measure our reference geometry for the shape
at the proportions listed above, not an average of stones on the market. A pear
cut to different proportions will read differently. Treat them as a like-for-like comparison
between shapes, not as a grade for any individual stone.
Read with care
Engine estimates, ±2 points, not lab-certified grades. We do
not publish the Index symmetry axis on these pages: it scores facet regularity within each
pavilion family, which is meaningful for a round brilliant and misleading for a shape whose
pavilion is deliberately irregular.
Scintillation
75.88 here against the standard’s 71.82.
The term is 100(1−e−n/45) on the count of facets
that actually reach the surface, so it is a pure function of facet count and nothing else.