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24ct Aquamarine (Radiant, 18.07×18.07mm, Light Blue) vs 24ct Diamond (Radiant, 16.67×16.67mm, White)


Quick summary: When looked from above (face-up position), 24ct Aquamarine (18.07×18.07mm, radiant cut) appears 18% larger than 24ct Diamond (16.67×16.67mm, radiant cut). See below how they compare side-by-side on a ring and finger.

24ct Aquamarine (radiant cut)
vs
24ct Diamond (radiant cut)
light blue
 
white
18.07×18.07 mm 16.67×16.67 mm
actual size
Actual size of 24ct Aquamarine (radiant cut, 18.07×18.07mm, Light Blue color)   Actual size of 24ct Diamond (radiant cut, 16.67×16.67mm, 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 24ct Aquamarine (radiant cut, 18.07×18.07mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 24ct Diamond (radiant cut, 16.67×16.67mm) 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
107% vs 99%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 24ct Aquamarine Radiant (18.07×18.07mm, Light Blue) and 24ct Diamond Radiant (16.67×16.67mm, 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.


24 Ct Aquamarine (Radiant) 24 Ct Diamond (Radiant)
18.07×18.07 mm vs 16.67×16.67 mm
310.2 mm²   263.99 mm²
Face-up size outline for 24ct Aquamarine (18.07×18.07mm, radiant cut)
Face-up size outline for 24ct Diamond (16.67×16.67mm, radiant cut)
24ct Aquamarine Radiant (18.07×18.07mm)
24ct Diamond Radiant (16.67×16.67mm)
Difference: 18% (46.21 mm²)
24ct Aquamarine (Radiant, 18.07×18.07mm) has approx. 18% more face-up area than 24ct Diamond (Radiant, 16.67×16.67mm).


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