Round
The classic all-round shape, known for sparkle and easy symmetry. It is also the simplest shape to compare by width.
Read the round guide →Diamonds · Shape guide
Which diamond shape feels like you?
Shape changes the whole personality of a ring. It also affects how large the diamond looks and how the setting needs to protect it.
Shape guide
Nine popular starting points
Use these pictures to make a shortlist. Real diamonds vary, even when they share the same shape name.
Oval
Longer on the finger than a round. Check whether you like a slim or fuller oval, and watch for a dark bow-tie across the middle.
Read the oval guide →Princess
A sharp, modern square with plenty of sparkle. The pointed corners need a protective setting.
Cushion
A softer square or rectangle with rounded corners. The name covers a wide range of looks, so compare real examples.
Read the cushion guide →Emerald
A long, elegant shape with broad flashes instead of busy sparkle. Its open look can make marks inside the diamond easier to see.
Read the emerald guide →Radiant
A lively, sparkly shape with trimmed corners. It can be square or rectangular, so check the actual length and width.
Pear
A teardrop shape that can point up or down the finger. Check that it looks balanced and that the pointed tip is protected.
Read the pear guide →Marquise
A long shape that can look large for its weight. Both pointed ends need protection, and any unevenness is easy to spot.
Asscher
A square shape with clipped corners and a calm, hall-of-mirrors look. Check its width because some of the weight can sit in the depth.
How to make a shortlist
- Notice whether you are drawn to round, square or longer shapes.
- Think about whether you want more finger coverage or a compact, balanced look.
- Consider pointed corners and how the setting will protect them.
- Look at real diamonds from a normal distance as well as zoomed in.
- Use the actual length and width for your final size comparison.
The size tool supports round, oval, pear, emerald and marquise diamonds. For the longer shapes, enter the actual length and width from the grading report.