Choosing a diamond shape
All diamonds are different and sparkle in their own way. As well as the 4Cs – cut, colour, clarity and carat – the shape should be carefully considered.
Round Brilliant cut diamonds
The traditional round diamond is the most coveted shape. When cut precisely, a round diamond exudes brilliance and signifies everlasting love.
For the finest round diamond, choose one in the top two cut grades and one of the highest symmetry and polish grades.
Princess cut diamonds
The princess cut diamond is also one of the most desired shapes. Its square shape flatters most fingers, while showcasing that sought-after sparkle.
When comparing princess-cut diamonds, look at how the corners reflect light back to the eye. Also be mindful that princess diamonds differ in their shape. A length-to-width ratio of between 1 and 1.05 is ideal for a square shape, while a ratio above 1.10 is best for rectangular princess cut diamonds.
Emerald cut diamonds
The elegant emerald diamond resembles a set of steps, which is why it’s sometimes called a step cut diamond. It may not have as much fire as other diamond shapes, but its unique beauty places the emerald cut in a class of its own.
If your heart is set on an emerald diamond, be sure to choose the highest clarity grade, since the shape’s larger pavilion is cut in a way to showcase the diamond’s clarity.
Choose a length-to-width ratio between 1.30 and 1.40 for a traditional emerald cut.
The asscher looks a lot like the emerald cut diamond, though it is more square than rectangle.
Famed master diamond cutter, Joseph Asscher, crafted the asscher cut in 1902. Today, its elegant, retro shape is still favoured.
Like the emerald, the asscher highlights the diamond’s clarity. So choose the highest clarity grade you can afford. And look for a length-to-width radio between 1.00 and 1.05.
Marquise cut diamonds
Delicate and regal, the marquise cut is perfect for any princess. It lengthens the finger, with its pretty tapered points, and appears larger than the carat weight suggests.
A marquise cut diamond illuminates when set with round or pear side stones. We suggest a length-to-width ratio of 1.75 to 2.25, for that classic marquise cut.
Oval cut diamonds
The oval cut diamond is an elongated brilliant cut stone – and popular because it slims and lengthens the finger.
We recommend a length-to-width ratio between 1.33 and 1.66.
Radiant cut diamonds
A radiant cut diamond is, simply, radiant. Similar to a round and emerald cut diamond, the radiant cut is a very versatile shape.
A square radiant cut diamond has a length-to-width ratio of between 1 and 1.05. A rectangular shape ratio is more than 1.10.
Pear shape diamonds
Known as the ‘teardrop of the gods’, the pear shape diamond is quite exquisite. With a single taper and rounded edge, the pear combines the marquise and oval diamond shapes.
Opt for a length-to-width ratio between 1.45 and 1.75.
Heart shape diamonds
Romantic and rare, the heart shaped diamond is both a symbol of eternal love and expert craftsmanship. The more symmetrical the cut, the more valuable it is.
Choose a heart cut diamond with a length-to-width radio between .90 and 1.10.
Cushion cut diamond
The cushion cut diamond is so-called because of its pillow-like appearance. To showcase their brilliance, cushion cut diamonds have larger faces and rounded corners.For a softer look, select a cushion cut diamond with a length-to-weight ratio between 1 and 1.05. Or opt for a ratio above 1.15 if you prefer a rectangular shape.