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3ct Tanzanite (Trillion, 10.81×10.81mm, Blue) vs 2ct Aquamarine (Trillion, 10.1×10.1mm, Light Bluish Green)


Quick summary: When looked from above (face-up position), 3ct Tanzanite (10.81×10.81mm, trillion cut) appears 15% larger than 2ct Aquamarine (10.1×10.1mm, trillion cut). See below how they compare side-by-side on a ring and finger.

3ct Tanzanite (trillion cut)
vs
 2ct Aquamarine (trillion cut)
blue
 
light bluish green
10.81×10.81 mm 10.1×10.1 mm
actual size
Actual size of 3ct Tanzanite (trillion cut, 10.81×10.81mm, Blue color)   Actual size of 2ct Aquamarine (trillion cut, 10.1×10.1mm, Light Bluish Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 3ct Tanzanite (trillion cut, 10.81×10.81mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Bluish Green 2ct Aquamarine (trillion cut, 10.1×10.1mm) 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
 64% vs 60%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 3ct Tanzanite Trillion (10.81×10.81mm, Blue) and 2ct Aquamarine Trillion (10.1×10.1mm, Light Bluish Green) 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, Tanzanite will face-up smaller than Aquamarine for a given carat weight, because it has higher specific gravity (3.35 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.


3 Ct Tanzanite (Trillion) 2 Ct Aquamarine (Trillion)
10.81×10.81 mm vs 10.1×10.1 mm
72.45 mm²   63.25 mm²
Face-up size outline for 3ct Tanzanite (10.81×10.81mm, trillion cut)
Face-up size outline for 2ct Aquamarine (10.1×10.1mm, trillion cut)
3ct Tanzanite Trillion (10.81×10.81mm)
2ct Aquamarine Trillion (10.1×10.1mm)
Difference: 15% (9.2 mm²)
3ct Tanzanite (Trillion, 10.81×10.81mm) has approx. 15% more face-up area than 2ct Aquamarine (Trillion, 10.1×10.1mm).


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