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Marquise

Marquise Diamonds in Grand Cayman

The shape that covers the most finger for its weight, GIA-certified and priced tax-free.

The Value Shape

The Shape That Reads Largest

A marquise is an elongated brilliant with pointed ends, and it is the most efficient shape in diamond buying. Because the weight is spread across the length rather than packed into depth, a marquise covers more finger than any other cut of the same carat weight, and it costs less per carat than a round because less of the rough is lost getting there.

It also flatters the hand. The long axis draws the eye down the finger, which slims and lengthens, and set east-west across the finger it becomes something else entirely, a quieter, more modern ring that very few people are wearing.

Two things decide whether a marquise is well cut. Symmetry: the two points must line up, and the widest part must sit at the centre, or the stone looks bent. And the bow-tie: a dark band across the middle that every elongated brilliant has to some degree, which good proportions minimise and poor ones make obvious. Both are visible in seconds once you know to look, and we will show you.

What to Check

Judging a Marquise

Length to Width

Around 1.85 to 2.1 is the classic outline. Shorter looks stubby, longer looks fragile and is more prone to chipping at the points.

The Bow-Tie

A dark band across the centre. Every marquise has one; well-proportioned stones keep it faint. Tilt the stone under light to see it.

Point Symmetry

The two tips must align and the widest point must be central. Asymmetry makes an otherwise good stone look wrong on the hand.

Protected Points

The tips are the vulnerable part. V-prongs cover them, which is the setting we use as standard on a marquise.

The IDC Promise

Why Choose IDC Cayman

GIA-Certified

Independently graded by the Gemological Institute of America, certainty with every stone.

Entirely Tax-Free

No duty, no sales tax. Exceptional value on every purchase in the Cayman Islands.

Bespoke Service

Prefer something unique? Our atelier designs and crafts one-of-a-kind pieces by hand.

Lifetime Care

Cleaning, inspection and resizing, we care for your jewelry for life.

Questions

Good to Know

Why does a marquise diamond look bigger?
Because the weight is spread across the length instead of packed into depth. A marquise has one of the largest surface areas of any shape per carat, so it covers more finger than a round or princess of identical weight and reads noticeably larger.
Is a marquise diamond good value?
It is one of the best. Less of the rough stone is lost cutting a marquise than a round brilliant, so it costs less per carat, and it looks larger for that weight. Those two effects compound, which is why marquise is the value shape.
What is a bow-tie in a marquise diamond?
A dark band running across the centre of the stone, caused by facets shadowing the middle. Every elongated brilliant shows one to some degree. Good proportions keep it faint enough to ignore; poor ones make it the first thing you see. Always tilt the stone under light before buying.
Do marquise diamonds chip easily?
The points are the vulnerable part, so they need covering. We set marquise stones with V-prongs over both tips as standard, which protects them without hiding the outline. Set that way a marquise is perfectly practical for daily wear.
What length to width ratio is best for a marquise?
Most people prefer 1.85 to 2.1. Below that the stone looks short and wide; above it the outline gets very slender and the points become more fragile. It is worth seeing two ratios side by side, because the preference is personal.
Visit Us

See the Bow-Tie Before You Buy

A bow-tie does not show in a photograph and it is the single thing that separates a good marquise from a cheap one. Come and tilt a few under the light.