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33ct Aquamarine (Round, 21.81×21.81mm, Light Blue) vs 33ct Diamond (Round, 20.85×20.85mm, White)


Quick summary: When looked from above (face-up position), 33ct Aquamarine (21.81×21.81mm, round cut) appears 9% larger than 33ct Diamond (20.85×20.85mm, round cut). See below how they compare side-by-side on a ring and finger.

33ct Aquamarine (round cut)
vs
 33ct Diamond (round cut)
light blue
 
white
21.81×21.81 mm 20.85×20.85 mm
actual size
Actual size of 33ct Aquamarine (round cut, 21.81×21.81mm, Light Blue color)   Actual size of 33ct Diamond (round cut, 20.85×20.85mm, 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 33ct Aquamarine (round cut, 21.81×21.81mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 33ct Diamond (round cut, 20.85×20.85mm) 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
 130% vs 124%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 33ct Aquamarine Round (21.81×21.81mm, Light Blue) and 33ct Diamond Round (20.85×20.85mm, 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.


33 Ct Aquamarine (Round) 33 Ct Diamond (Round)
21.81×21.81 mm vs 20.85×20.85 mm
373.6 mm²   341.43 mm²
Face-up size outline for 33ct Aquamarine (21.81×21.81mm, round cut)
Face-up size outline for 33ct Diamond (20.85×20.85mm, round cut)
33ct Aquamarine Round (21.81×21.81mm)
33ct Diamond Round (20.85×20.85mm)
Difference: 9% (32.17 mm²)
33ct Aquamarine (Round, 21.81×21.81mm) has approx. 9% more face-up area than 33ct Diamond (Round, 20.85×20.85mm).


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