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11ct Alexandrite (Emerald, 14.54×10.77mm, Bluish Green) vs 11ct Topaz (Emerald, 14.81×10.97mm, Blue)


Quick summary: When looked from above (face-up position), 11ct Topaz (14.81×10.97mm, emerald cut) appears 4% larger than 11ct Alexandrite (14.54×10.77mm, emerald cut). See below how they compare side-by-side on a ring and finger.

11ct Alexandrite (emerald cut)
vs
 11ct Topaz (emerald cut)
bluish green
 
blue
14.54×10.77 mm 14.81×10.97 mm
actual size
Actual size of 11ct Alexandrite (emerald cut, 14.54×10.77mm, Bluish Green color)   Actual size of 11ct Topaz (emerald cut, 14.81×10.97mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Bluish Green 11ct Alexandrite (emerald cut, 14.54×10.77mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 11ct Topaz (emerald cut, 14.81×10.97mm) 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 65%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 11ct Alexandrite Emerald (14.54×10.77mm, Bluish Green) and 11ct Topaz Emerald (14.81×10.97mm, 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, Alexandrite will face-up smaller than Topaz for a given carat weight, because it has higher specific gravity (3.73 vs. 3.53 - this means it's "heavier" compared to Topaz 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.


11 Ct Alexandrite (Emerald) 11 Ct Topaz (Emerald)
14.54×10.77 mm vs 14.81×10.97 mm
145.63 mm²   151.09 mm²
Face-up size outline for 11ct Topaz (14.81×10.97mm, emerald cut)
Face-up size outline for 11ct Alexandrite (14.54×10.77mm, emerald cut)
11ct Alexandrite Emerald (14.54×10.77mm)
11ct Topaz Emerald (14.81×10.97mm)
Difference: 4% (5.46 mm²)
11ct Topaz (Emerald, 14.81×10.97mm) has approx. 4% more face-up area than 11ct Alexandrite (Emerald, 14.54×10.77mm).


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