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36ct Tanzanite (Marquise, 34.06×17.03mm, Blue) vs 36ct Aquamarine (Marquise, 36.5×18.25mm, Light Blue)


Quick summary: When looked from above (face-up position), 36ct Aquamarine (36.5×18.25mm, marquise cut) appears 15% larger than 36ct Tanzanite (34.06×17.03mm, marquise cut). See below how they compare side-by-side on a ring and finger.

36ct Tanzanite (marquise cut)
vs
36ct Aquamarine (marquise cut)
blue
 
light blue
34.06×17.03 mm 36.5×18.25 mm
actual size
Actual size of 36ct Tanzanite (marquise cut, 34.06×17.03mm, Blue color)   Actual size of 36ct Aquamarine (marquise cut, 36.5×18.25mm, Light Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 36ct Tanzanite (marquise cut, 34.06×17.03mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Blue 36ct Aquamarine (marquise cut, 36.5×18.25mm) 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
101% vs 108%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 36ct Tanzanite Marquise (34.06×17.03mm, Blue) and 36ct Aquamarine Marquise (36.5×18.25mm, Light 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

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.


36 Ct Tanzanite (Marquise) 36 Ct Aquamarine (Marquise)
34.06×17.03 mm vs 36.5×18.25 mm
411.83 mm²   472.95 mm²
Face-up size outline for 36ct Aquamarine (36.5×18.25mm, marquise cut)
Face-up size outline for 36ct Tanzanite (34.06×17.03mm, marquise cut)
36ct Tanzanite Marquise (34.06×17.03mm)
36ct Aquamarine Marquise (36.5×18.25mm)
Difference: 15% (61.12 mm²)
36ct Aquamarine (Marquise, 36.5×18.25mm) has approx. 15% more face-up area than 36ct Tanzanite (Marquise, 34.06×17.03mm).


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