Question 1

How much is a lab grown marquise diamond?

Accepted Answer

The price depends most on the carat weight, and then on the diamond's color, clarity, cut and certificate. A marquise looks large for its weight, so you often get more spread for your budget, and lab grown costs a fraction of a mined marquise. Prices move daily, so check today's live prices below.

See today's prices: marquise lab grown diamonds

Question 2

What is the bow-tie in a marquise?

Accepted Answer

The bow-tie is a dark, bow-shaped shadow across the middle of a marquise or other elongated cut. Every marquise has a slight one, but a well-cut stone keeps it faint. Pick an eye-clean, well-cut marquise and watch the 360° video to see how the bow-tie behaves as the stone moves.

Question 3

What length-to-width ratio should a marquise be?

Accepted Answer

A classic marquise sits around a 1.85 to 2.10 length-to-width ratio, which gives the long, pointed look the shape is known for. A higher ratio looks more dramatic and slimming; a lower one looks fuller and rounder. Compare a few ratios in the listing to find the outline you like.

Question 4

How big does a marquise look per carat?

Accepted Answer

A marquise looks the largest of all the shapes for its weight, because it is long and shallow. As a guide, a 1 carat is about 10.3 × 5.3 mm, a 2 carat about 13.7 × 6.3 mm, and a 3 carat about 15.1 × 7.6 mm. Exact mm shift with the ratio you pick.

Question 5

What is a Dutch marquise?

Accepted Answer

A Dutch marquise is a marquise with extra facets added for more sparkle, giving a fuller, brighter face than a standard marquise. It is a variant of the same long, pointed shape, not a different stone — a good option if you want maximum fire from a marquise.

Question 6

Is a lab grown marquise diamond real?

Accepted Answer

A lab grown marquise is a diamond — the same carbon crystal and hardness as a mined one, just grown in a lab. Every stone is graded by IGI or GIA. This is the loose stone; when you are ready, set it into a marquise engagement ring.

Ready for a setting? See marquise engagement rings.

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