Marquise vs Oval Diamond Compared

Marquise and oval are both elongated shapes that spread more visible size across the finger than their carat weight alone suggests, but their outlines — and the practical considerations that follow from them — are genuinely different.

Outline

Oval is a single continuous curve. Marquise has two sharp, pointed tips at either end, giving it the most dramatically elongated, unmistakable silhouette of any mainstream diamond shape. See our oval and marquise buying guides for each shape's own detail.

Durability

This is the clearest practical difference: marquise's sharp points are genuinely more vulnerable to chipping than any point on an oval's smooth curve, and need a protective setting (a V-prong or shrouded claw) specifically designed to shield each tip — see our marquise buying guide. Oval has no equivalent vulnerable point and is more forgiving of a wider range of setting styles.

Face-up size and ratio

Both look larger than round at the same carat weight, but marquise typically pushes further — its more extreme length-to-width ratio (roughly 1.85–2.20, versus oval's roughly 1.30–1.50) makes it the more dramatic size illusion of the two, at the cost of being the less versatile, more attention-grabbing choice.

Which to choose

Choose oval for a softer, more universally wearable elongated look with fewer setting constraints. Choose marquise for the most dramatic, unmistakable elongated silhouette available, provided you're comfortable with (and your jeweller properly executes) protective tip settings.

Related reading

• Oval diamond buying guide
• Marquise diamond buying guide
• Which diamond shape looks biggest for its carat weight?