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11ct Aquamarine (Marquise, 24.58×12.29mm, Light Blue) vs 11ct Diamond (Marquise, 23.1×11.55mm, White)


Quick summary: When looked from above (face-up position), 11ct Aquamarine (24.58×12.29mm, marquise cut) appears 13% larger than 11ct Diamond (23.1×11.55mm, marquise cut). See below how they compare side-by-side on a ring and finger.

11ct Aquamarine (marquise cut)
vs
11ct Diamond (marquise cut)
light blue
 
white
24.58×12.29 mm 23.1×11.55 mm
actual size
Actual size of 11ct Aquamarine (marquise cut, 24.58×12.29mm, Light Blue color)   Actual size of 11ct Diamond (marquise cut, 23.1×11.55mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Blue 11ct Aquamarine (marquise cut, 24.58×12.29mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 11ct Diamond (marquise cut, 23.1×11.55mm) 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
73% vs 69%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 11ct Aquamarine Marquise (24.58×12.29mm, Light Blue) and 11ct Diamond Marquise (23.1×11.55mm, White) 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 Aquamarine for a given carat weight, because it has higher specific gravity (3.52 vs. 2.72 - this means it's "heavier" compared to Aquamarine 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.


11 Ct Aquamarine (Marquise) 11 Ct Diamond (Marquise)
24.58×12.29 mm vs 23.1×11.55 mm
214.48 mm²   189.43 mm²
Face-up size outline for 11ct Aquamarine (24.58×12.29mm, marquise cut)
Face-up size outline for 11ct Diamond (23.1×11.55mm, marquise cut)
11ct Aquamarine Marquise (24.58×12.29mm)
11ct Diamond Marquise (23.1×11.55mm)
Difference: 13% (25.05 mm²)
11ct Aquamarine (Marquise, 24.58×12.29mm) has approx. 13% more face-up area than 11ct Diamond (Marquise, 23.1×11.55mm).


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