Marquise Diamonds - Do Amore

Marquise Diamonds

Marquise diamonds are beautiful, elegant, and very rare. In fact, at the time of writing this article, only 1.5% of GIA-certified diamonds available for sale globally were marquise diamonds (18,191 marquise diamonds out of 1,178,007 total diamonds).

Besides being very unique, marquise diamonds have other advantages too. They are less expensive than round diamonds, they make the fingers look elongated and thin, and they look larger than all other diamond shapes of the same carat weight. However, because the GIA does not grade a marquise diamond for “cut”, it is important to fully understand the specifications of marquise diamonds before buying one, as well as to understand two key features present in marquise diamonds: the bow-tie effect and the length to width ratio.

Table, Depth & Other Specifications for Ideal Marquise Diamonds

Like other fancy cut diamonds, the GIA does not grade marquise diamonds for cut. For this reason, it is important to note that any website or store that advertises a GIA-certified marquise diamonds with a cut grade is offering their own grade based on the stone specifications (the accompanying GIA certificate will not have a cut grade). While there is no problem with this, we strongly recommend you verify the cut grade yourself.

The table below serves as a general guideline for evaluating the cut grade of a marquise diamond.

marquis

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Ideal Cut (Most Sparkle)

Excellent Cut

Very Good

Table %

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53 - 58

Sl1 - Sl2

l1

Depth %

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59 - 62.3

Sl1 - Sl2

l1

Girdle

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Thin to Slightly Thick

Thin to Slightly Thick

Sl2

Culet

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None

None

Very Small

Length to Width Ratio

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1 - 1.01

VS2 - Sl1

Sl2

Color Recommendations for Marquise Diamonds

The color grade of a marquise diamond refers to how much color (or lack of a color) the diamond shows. Like most diamonds, smaller marquise diamonds will hide color better while larger marquise diamonds will show color easier. However, because marquise diamonds look larger than other diamonds, even smaller diamonds can show some color so if you are wanting an ice-ice white diamond, it is best to stick in the D-F color range. If you more so just want a colorless diamond then you may be able to purchase a G, H, or even I color depending on the size of the stone. The color chart below provides a guide for evaluating color in marquise diamonds, based on the carat weight of the diamond you are buying, and your personal color preference.

marquis

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Carat Weight

No Visible Color

Limited Color Okay

Prefer a Warmer Color

< 0.5

D - I

J - K

L +

0.75

D - H

I - J

K +

1

D - H

I - J

K +

1.5

D - G

H - I

J +

2.0 +

D - G

H - I

J +

Clarity Recommendations for Marquise Diamonds

The clarity grade of a marquise diamond is based on how many and how severe the imperfections are on a diamond. It’s harder to see flaws on smaller marquise diamonds than larger ones, so you can definitely purchase a smaller diamond with a lower clarity rating, while still maintaining an eye-clean appearance. However, like mentioned above in the color section, marquise diamonds look larger than other diamonds so you still want to be cautious and have us (or your jeweler) verify that the diamond meets your clarity expectations. Overall though, because marquise diamonds are brilliant cut, they hide blemishes fairly well within their sparkle.

Evaluating clarity in marquise diamonds is subjective because each consumer has their own standard for clarity. Some may be perfectly comfortable with inclusions as long as they cannot easily see it, but others may insist on a more technically flawless appearance. The clarity chart below provides general guidelines for picking a clarity rating for your marquise diamond, based on your inclusion tolerance. Please note that the ratings in the Clean to the Naked Eye column assume that your jeweler will check to ensure it is actually eye-clean. For example, every time a customer purchases a marquise engagement ring from us, we send a gemologist to check and make sure the diamond is “eye-clean” and inform the customer if it isn’t. If you want an eye clean stone, make sure you ask your jeweler to do the same.

marquis
marquis

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Carat Weight

Clean Under Light Magnification

Clean to the Naked Eye ("Eye-Clean")

Visible Blemish Okay As Long As Not Very Obvious

< 0.5

FL-VS2

SI1-SI2

l1

0.75

FL-VS2

SI1-SI2

l1

1

FL-VS2

SI1

Sl2

1.5

FL-VS1

VS2-SI1

Sl2

2.0 +

FL-VS1

VS2-SI1

Sl2

Length to Width Ratio for Marquise Diamonds

All marquise diamonds in our diamond search engine have the length to width ratio listed. This ratio, which is simply the length divided by the width, determines how skinny or wide the marquise diamond is. The larger the length to width ratio means the diamond is much taller than it is wide (a skinny marquise diamond). The smaller the length to width ratio means the length isn’t that much greater than it’s width (a wider marquise diamond). We personally prefer marquise diamonds with a length to width ratio of 1.85-2.05.

Note about Marquise Halo Engagement Rings: If you opt to set your marquise diamond in a halo setting, then the diamond can end up looking wider! This is because the halo adds an equal amount of length and width around the centerstone, which means the marquise diamond will look like it has a smaller length to width ratio. To avoid your diamond from looking too wide, if purchasing a halo engagement ring then you may want to opt for a marquise diamond with a slightly higher length to width ratio than your preference. Or just let us (or your jeweler) know you are opting for a halo engagement ring so we can find diamonds that will look beautiful and proportional for your marquise halo setting.

1.80

1.90

2.00

2.10

Settings that Pair Well with Marquise Diamonds

Marquise diamonds are lovely, but their unique and elongated design means that they don’t flow well with every ring design. The below rings are a few of our favorite marquise diamond engagement rings that we believe showcase the beauty of marquise diamonds. These marquise engagement rings are available in all metals, including 14k white gold, yellow gold, rose gold, palladium, and platinum.

Money Tips

When looking for a marquise diamond, make sure to always try to maximize measurements within your ideally cut diamond. For example, you can have a 1.0 carat marquise diamond with the measurements 10.50 x 5.30 mm that is ideally cut. But there could also be a 0.96 carat marquise diamond with measurements 10.60 x 5.40 mm that is just as ideally cut that is probably cheaper. If all else were equal, the second option may be a better option. All diamonds in our “hand selected” stone section above have had their dimensions reviewed to make sure they were being maximized for their carat weight, while maintaining an ideal cut.

3 Things to Ask Your Jeweler

  • 01.

    Photo & Video

    Always ask the jeweler you are buying from for a detailed picture or video like this one.

  • 02.

    Inspect It

    Ask the jeweler to pull the diamond and actually visually inspect it.

  • 03.

    Measure It

    Make sure your marquise diamond’s measurements are maximized within your carat size.

Other Ring Resources

See our in-depth educational guides, which were made to give practical advice with every aspect of your ring.

Diamonds

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Moissanite

moissinite

Sapphires

sapphire

Gold Palladium & Platinum

gold-pallidium-platinum