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3ct Aquamarine (Marquise, 16.22×8.11mm, Blue) vs 4ct Aquamarine (Marquise, 17.86×8.93mm, Blue)


Quick summary: When looked from above (face-up position), 4ct Aquamarine (17.86×8.93mm, marquise cut) appears 21% larger than 3ct Aquamarine (16.22×8.11mm, marquise cut). See below how they compare side-by-side on a ring and finger.

3ct Aquamarine (marquise cut)
vs
4ct Aquamarine (marquise cut)
blue
 
blue
16.22×8.11 mm 17.86×8.93 mm
actual size
Actual size of 3ct Aquamarine (marquise cut, 16.22×8.11mm, Blue color)   Actual size of 4ct Aquamarine (marquise cut, 17.86×8.93mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 3ct Aquamarine (marquise cut, 16.22×8.11mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 4ct Aquamarine (marquise cut, 17.86×8.93mm) 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
48% vs 53%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 3ct Aquamarine Marquise (16.22×8.11mm, Blue) and 4ct Aquamarine Marquise (17.86×8.93mm, Blue) 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

The face-up size depends on the shape of the gem, its weight and 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.


3 Ct Aquamarine (Marquise) 4 Ct Aquamarine (Marquise)
16.22×8.11 mm vs 17.86×8.93 mm
93.4 mm²   113.24 mm²
Face-up size outline for 4ct Aquamarine (17.86×8.93mm, marquise cut)
Face-up size outline for 3ct Aquamarine (16.22×8.11mm, marquise cut)
3ct Aquamarine Marquise (16.22×8.11mm)
4ct Aquamarine Marquise (17.86×8.93mm)
Difference: 21% (19.84 mm²)
4ct Aquamarine (Marquise, 17.86×8.93mm) has approx. 21% more face-up area than 3ct Aquamarine (Marquise, 16.22×8.11mm).


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