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13ct Morganite (Round, 15.83×15.83mm, Light Purple) vs 13ct Quartz (Round, 16.13×16.13mm, Brown)


Quick summary: When looked from above (face-up position), 13ct Quartz (16.13×16.13mm, round cut) appears 4% larger than 13ct Morganite (15.83×15.83mm, round cut). See below how they compare side-by-side on a ring and finger.

13ct Morganite (round cut)
vs
 13ct Quartz (round cut)
light purple
 
brown
15.83×15.83 mm 16.13×16.13 mm
actual size
Actual size of 13ct Morganite (round cut, 15.83×15.83mm, Light Purple color)   Actual size of 13ct Quartz (round cut, 16.13×16.13mm, Brown color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Purple 13ct Morganite (round cut, 15.83×15.83mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Brown 13ct Quartz (round cut, 16.13×16.13mm) 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
 94% vs 96%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 13ct Morganite Round (15.83×15.83mm, Light Purple) and 13ct Quartz Round (16.13×16.13mm, 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, Morganite will face-up smaller than Quartz for a given carat weight, because it has higher specific gravity (2.8 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.


13 Ct Morganite (Round) 13 Ct Quartz (Round)
15.83×15.83 mm vs 16.13×16.13 mm
196.81 mm²   204.34 mm²
Face-up size outline for 13ct Quartz (16.13×16.13mm, round cut)
Face-up size outline for 13ct Morganite (15.83×15.83mm, round cut)
13ct Morganite Round (15.83×15.83mm)
13ct Quartz Round (16.13×16.13mm)
Difference: 4% (7.53 mm²)
13ct Quartz (Round, 16.13×16.13mm) has approx. 4% more face-up area than 13ct Morganite (Round, 15.83×15.83mm).


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