Diamond guide
Find your shape
Every shape has its own character. Explore the lines, proportions and details that feel like you, and we will build your piece around them.
01
Round
Balanced. Timeless.
A circular outline with brilliant facets. A familiar shape that works across settings and styles.
02
Emerald
Clean. Architectural.
An elongated rectangle with cropped corners. Broad step facets create a quieter play of light.
03
Oval
Fluid. Understated.
An elongated curve with brilliant facets. Soft lines that lend themselves to both simple and expressive settings.
04
Pear
Soft. Distinctive.
A rounded end meeting a single point. Wear the silhouette in either direction to change its expression.
05
Cushion
Rounded. Effortless.
A square or rectangular outline with softened corners. Curved edges bring warmth to a geometric form.
06
Marquise
Sculptural. Elongated.
A long, curved outline with two pointed ends. A striking shape for an individual setting.
07
Heart
Personal. Expressive.
Two rounded lobes meeting at a point. A recognisable symbol, made personal through its setting.
08
Radiant
Angular. Luminous.
A square or rectangular silhouette with cropped corners and brilliant facets. Defined lines with a lively play of light.
These drawings show the character of each shape. Actual proportions and facet patterns vary from stone to stone. Shape describes the outline; cut describes how the facets interact with light.
Round brilliant diamonds
Diamond carat guide
Carat measures weight. Diameter gives you an idea of how a diamond will look from above. Compare these round brilliant examples to find the proportions you are drawn to.
0.50 ct
Approx. 5.0 mm
1.00 ct
Approx. 6.4 mm
1.50 ct
Approx. 7.3 mm
2.00 ct
Approx. 8.1 mm
2.50 ct
Approx. 8.8 mm
3.00 ct
Approx. 9.3 mm
Illustrations show relative sizes, rather than actual size on your screen. Diameters are approximate; a diamond’s cut and proportions affect its measurements. Other shapes can look different at the same carat weight.
Make it yours
Drawn to one shape, or a contrast of two? Tell us what you have in mind.