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9ct Sapphire (Marquise, 20.22×10.11mm, Blue) vs 9ct Topaz (Marquise, 21.08×10.54mm, Blue)


Quick summary: When looked from above (face-up position), 9ct Topaz (21.08×10.54mm, marquise cut) appears 9% larger than 9ct Sapphire (20.22×10.11mm, marquise cut). See below how they compare side-by-side on a ring and finger.

9ct Sapphire (marquise cut)
vs
 9ct Topaz (marquise cut)
blue
 
blue
20.22×10.11 mm 21.08×10.54 mm
actual size
Actual size of 9ct Sapphire (marquise cut, 20.22×10.11mm, Blue color)   Actual size of 9ct Topaz (marquise cut, 21.08×10.54mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 9ct Sapphire (marquise cut, 20.22×10.11mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 9ct Topaz (marquise cut, 21.08×10.54mm) 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
 60% vs 63%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 9ct Sapphire Marquise (20.22×10.11mm, Blue) and 9ct Topaz Marquise (21.08×10.54mm, 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, Sapphire will face-up smaller than Topaz for a given carat weight, because it has higher specific gravity (4 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.


9 Ct Sapphire (Marquise) 9 Ct Topaz (Marquise)
20.22×10.11 mm vs 21.08×10.54 mm
145.14 mm²   157.75 mm²
Face-up size outline for 9ct Topaz (21.08×10.54mm, marquise cut)
Face-up size outline for 9ct Sapphire (20.22×10.11mm, marquise cut)
9ct Sapphire Marquise (20.22×10.11mm)
9ct Topaz Marquise (21.08×10.54mm)
Difference: 9% (12.61 mm²)
9ct Topaz (Marquise, 21.08×10.54mm) has approx. 9% more face-up area than 9ct Sapphire (Marquise, 20.22×10.11mm).


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