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3ct Topaz (Oval, 11×9mm, Blue) vs 1ct Aquamarine (Oval, 8.63×5.75mm, Light Blue)


Quick summary: When looked from above (face-up position), 3ct Topaz (11×9mm, oval cut) appears 100% larger than 1ct Aquamarine (8.63×5.75mm, oval cut). See below how they compare side-by-side on a ring and finger.

3ct Topaz (oval cut)
vs
1ct Aquamarine (oval cut)
blue
 
light blue
11×9 mm 8.63×5.75 mm
actual size
Actual size of 3ct Topaz (oval cut, 11×9mm, Blue color)   Actual size of 1ct Aquamarine (oval cut, 8.63×5.75mm, Light Blue color)
 
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Ring: Skin tone:
Ring width: 3.0 mm
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Left finger image
Ring on left finger
Blue 3ct Topaz (oval cut, 11×9mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Blue 1ct Aquamarine (oval cut, 8.63×5.75mm) 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
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Ring diameter: 16.9 mm
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Actual sizes of 3ct Topaz Oval (11×9mm, Blue) and 1ct Aquamarine Oval (8.63×5.75mm, 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, Topaz will face-up smaller than Aquamarine for a given carat weight, because it has higher specific gravity (3.53 vs. 2.7 - 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 Topaz (Oval) 1 Ct Aquamarine (Oval)
11×9 mm vs 8.63×5.75 mm
81.18 mm²   40.69 mm²
Face-up size outline for 3ct Topaz (11×9mm, oval cut)
Face-up size outline for 1ct Aquamarine (8.63×5.75mm, oval cut)
3ct Topaz Oval (11×9mm)
1ct Aquamarine Oval (8.63×5.75mm)
Difference: 100% (40.49 mm²)
3ct Topaz Oval (11×9mm) has approx. 100% more face-up area than 1ct Aquamarine Oval (8.63×5.75mm).


Popular comparisons:

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If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.