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19ct Diamond (Marquise, 27.72×13.86mm, White) vs 19ct Emerald (Marquise, 29.5×14.75mm, Green)


Quick summary: When looked from above (face-up position), 19ct Emerald (29.5×14.75mm, marquise cut) appears 13% larger than 19ct Diamond (27.72×13.86mm, marquise cut). See below how they compare side-by-side on a ring and finger.

19ct Diamond (marquise cut)
vs
 19ct Emerald (marquise cut)
white
 
green
27.72×13.86 mm 29.5×14.75 mm
actual size
Actual size of 19ct Diamond (marquise cut, 27.72×13.86mm, White color)   Actual size of 19ct Emerald (marquise cut, 29.5×14.75mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 19ct Diamond (marquise cut, 27.72×13.86mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 19ct Emerald (marquise cut, 29.5×14.75mm) on a right ring and finger
Your settings
Ring
 Gold
Skin tone
 Light
Ring diameter
 16.9 mm
Ring width
 3.0 mm
Finger length
 64 mm
Finger coverage
 83% vs 88%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 19ct Diamond Marquise (27.72×13.86mm, White) and 19ct Emerald Marquise (29.5×14.75mm, Green) as they would appear on a ring and finger. Adjust the ring and finger size to get an idea of how these gemstones would look on your finger.

Where to buy?

For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile

Face-up Size

All things being equal, Diamond will face-up smaller than Emerald for a given carat weight, because it has higher specific gravity (3.52 vs. 2.72 - this means it's "heavier" compared to Emerald of the same size). Face-up size also depends heavily on the proportions of the cut.

Face-up area is a measure of the size of the gem when viewed from above (as set in a ring). It tells you how big the gem is at the girdle plane.


19 Ct Diamond (Marquise) 19 Ct Emerald (Marquise)
27.72×13.86 mm vs 29.5×14.75 mm
272.78 mm²   308.94 mm²
Face-up size outline for 19ct Emerald (29.5×14.75mm, marquise cut)
Face-up size outline for 19ct Diamond (27.72×13.86mm, marquise cut)
19ct Diamond Marquise (27.72×13.86mm)
19ct Emerald Marquise (29.5×14.75mm)
Difference: 13% (36.16 mm²)
19ct Emerald (Marquise, 29.5×14.75mm) has approx. 13% more face-up area than 19ct Diamond (Marquise, 27.72×13.86mm).


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