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19ct Topaz (Marquise, 27.04×13.52mm, Blue) vs 19ct Quartz (Marquise, 29.76×14.88mm, Brown)


Quick summary: When looked from above (face-up position), 19ct Quartz (29.76×14.88mm, marquise cut) appears 21% larger than 19ct Topaz (27.04×13.52mm, marquise cut). See below how they compare side-by-side on a ring and finger.

19ct Topaz (marquise cut)
vs
 19ct Quartz (marquise cut)
blue
 
brown
27.04×13.52 mm 29.76×14.88 mm
actual size
Actual size of 19ct Topaz (marquise cut, 27.04×13.52mm, Blue color)   Actual size of 19ct Quartz (marquise cut, 29.76×14.88mm, Brown color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 19ct Topaz (marquise cut, 27.04×13.52mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Brown 19ct Quartz (marquise cut, 29.76×14.88mm) 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
 80% vs 89%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 19ct Topaz Marquise (27.04×13.52mm, Blue) and 19ct Quartz Marquise (29.76×14.88mm, Brown) 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 Quartz for a given carat weight, because it has higher specific gravity (3.53 vs. 2.65 - this means it's "heavier" compared to Quartz 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.


19 Ct Topaz (Marquise) 19 Ct Quartz (Marquise)
27.04×13.52 mm vs 29.76×14.88 mm
259.56 mm²   314.41 mm²
Face-up size outline for 19ct Quartz (29.76×14.88mm, marquise cut)
Face-up size outline for 19ct Topaz (27.04×13.52mm, marquise cut)
19ct Topaz Marquise (27.04×13.52mm)
19ct Quartz Marquise (29.76×14.88mm)
Difference: 21% (54.85 mm²)
19ct Quartz (Marquise, 29.76×14.88mm) has approx. 21% more face-up area than 19ct Topaz (Marquise, 27.04×13.52mm).


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