Diamond Shapes 101

Shape is one of the most visible characteristics of your diamond—and it's entirely about personal preference. Here's what makes each shape unique.

Unlike the 4Cs (which measure quality), shape is purely aesthetic. There's no "best" shape—only the shape that speaks to you and your partner. Consider finger shape, personal style, and how different shapes pair with various settings.

Round Brilliant diamond shapeMost Popular

Round Brilliant

The classic choice, accounting for about 75% of all diamonds sold. Optimized for maximum brilliance and fire.

  • Maximum sparkle
  • Timeless appeal
  • Hides inclusions well
  • Highest price per carat
Oval diamond shapeTrending

Oval

Elongated shape that appears larger than round diamonds of equal carat weight. Very flattering on the finger.

  • Appears larger
  • Elongates finger
  • Modern yet classic
  • May show "bow-tie" effect
Princess diamond shapeVery Popular

Princess

A square shape with pointed corners and brilliant sparkle. A modern alternative to round diamonds.

  • Contemporary look
  • Good brilliance
  • Corners need protection
  • Excellent value
Cushion diamond shapeClassic

Cushion

A pillow-like shape with rounded corners and larger facets. Has a romantic, vintage feel.

  • Soft, romantic look
  • Shows color more
  • Vintage appeal
  • Various length-to-width ratios
Emerald diamond shapeSophisticated

Emerald

A rectangular shape with step-cut facets creating a "hall of mirrors" effect. Elegant and understated.

  • Elegant, subtle sparkle
  • Shows clarity clearly
  • Art Deco style
  • Requires higher clarity grade
Pear diamond shapeUnique

Pear

A teardrop shape combining round and marquise. Unique and flattering, especially on longer fingers.

  • Distinctive look
  • Appears larger
  • Versatile wearing orientation
  • Check for symmetry
Marquise diamond shapeDistinctive

Marquise

An elongated shape with pointed ends. Creates the largest surface area of any shape, appearing bigger than it is.

  • Maximizes carat appearance
  • Very elongating
  • Royal heritage
  • Points need protection
Radiant diamond shapeBrilliant

Radiant

A rectangular or square shape with brilliant-cut facets. Combines the elegance of emerald with the sparkle of round.

  • Lots of sparkle
  • Cropped corners
  • Versatile shape
  • Hides inclusions well

Quick Tips for Choosing a Shape

For shorter fingers

Elongated shapes like oval, pear, or marquise create a lengthening effect.

For maximum sparkle

Round brilliant, radiant, and princess cuts offer the most fire and brilliance.

For vintage style

Cushion, emerald, and Asscher cuts have an antique, romantic quality.

For best value

Fancy shapes (anything non-round) typically cost 10-40% less per carat.

Find Your Perfect Shape

Browse engagement rings by diamond shape at GlitzJewelry.com and see how each shape looks in different settings.

Shop by Shape at GlitzJewelry.com
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