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1.3ct Aquamarine (Cushion, 6.96×6.96mm, Light Blue) vs 2ct Diamond (Emerald, 8.42×6.24mm, White)


Quick summary: When looked from above (face-up position), 2ct Diamond (8.42×6.24mm, emerald cut) appears 12% larger than 1.3ct Aquamarine (6.96×6.96mm, cushion cut). See below how they compare side-by-side on a ring and finger.

1.3ct Aquamarine (cushion cut)
vs
 2ct Diamond (emerald cut)
light blue
 
white
6.96×6.96 mm 8.42×6.24 mm
actual size
Actual size of 1.3ct Aquamarine (cushion cut, 6.96×6.96mm, Light Blue color)   Actual size of 2ct Diamond (emerald cut, 8.42×6.24mm, 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 1.3ct Aquamarine (cushion cut, 6.96×6.96mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 2ct Diamond (emerald cut, 8.42×6.24mm) 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
 42% vs 37%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1.3ct Aquamarine Cushion (6.96×6.96mm, Light Blue) and 2ct Diamond Emerald (8.42×6.24mm, 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.


1.3 Ct Aquamarine (Cushion) 2 Ct Diamond (Emerald)
6.96×6.96 mm vs 8.42×6.24 mm
43.6 mm²   48.86 mm²
Face-up size outline for 2ct Diamond (8.42×6.24mm, emerald cut)
Face-up size outline for 1.3ct Aquamarine (6.96×6.96mm, cushion cut)
1.3ct Aquamarine Cushion (6.96×6.96mm)
2ct Diamond Emerald (8.42×6.24mm)
Difference: 12% (5.26 mm²)
2ct Diamond (Emerald, 8.42×6.24mm) has approx. 12% more face-up area than 1.3ct Aquamarine (Cushion, 6.96×6.96mm).


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