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1.6ct Aquamarine (Cushion, 7.46×7.46mm, Light Blue) vs 1.6ct Diamond (Cushion, 6.81×6.81mm, White)


Quick summary: When looked from above (face-up position), 1.6ct Aquamarine (7.46×7.46mm, cushion cut) appears 20% larger than 1.6ct Diamond (6.81×6.81mm, cushion cut). See below how they compare side-by-side on a ring and finger.

1.6ct Aquamarine (cushion cut)
vs
 1.6ct Diamond (cushion cut)
light blue
 
white
7.46×7.46 mm 6.81×6.81 mm
actual size
Actual size of 1.6ct Aquamarine (cushion cut, 7.46×7.46mm, Light Blue color)   Actual size of 1.6ct Diamond (cushion cut, 6.81×6.81mm, 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 1.6ct Aquamarine (cushion cut, 7.46×7.46mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1.6ct Diamond (cushion cut, 6.81×6.81mm) 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
 45% vs 41%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.6ct Aquamarine Cushion (7.46×7.46mm, Light Blue) and 1.6ct Diamond Cushion (6.81×6.81mm, 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.


1.6 Ct Aquamarine (Cushion) 1.6 Ct Diamond (Cushion)
7.46×7.46 mm vs 6.81×6.81 mm
50.09 mm²   41.74 mm²
Face-up size outline for 1.6ct Aquamarine (7.46×7.46mm, cushion cut)
Face-up size outline for 1.6ct Diamond (6.81×6.81mm, cushion cut)
1.6ct Aquamarine Cushion (7.46×7.46mm)
1.6ct Diamond Cushion (6.81×6.81mm)
Difference: 20% (8.35 mm²)
1.6ct Aquamarine (Cushion, 7.46×7.46mm) has approx. 20% more face-up area than 1.6ct Diamond (Cushion, 6.81×6.81mm).


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