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15ct Morganite (Round, 16.61×16.61mm, Light Purple) vs 15ct Quartz (Round, 16.91×16.91mm, Brown)


Quick summary: When looked from above (face-up position), 15ct Quartz (16.91×16.91mm, round cut) appears 4% larger than 15ct Morganite (16.61×16.61mm, round cut). See below how they compare side-by-side on a ring and finger.

15ct Morganite (round cut)
vs
 15ct Quartz (round cut)
light purple
 
brown
16.61×16.61 mm 16.91×16.91 mm
actual size
Actual size of 15ct Morganite (round cut, 16.61×16.61mm, Light Purple color)   Actual size of 15ct Quartz (round cut, 16.91×16.91mm, 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 15ct Morganite (round cut, 16.61×16.61mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Brown 15ct Quartz (round cut, 16.91×16.91mm) 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
 99% vs 101%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 15ct Morganite Round (16.61×16.61mm, Light Purple) and 15ct Quartz Round (16.91×16.91mm, 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.


15 Ct Morganite (Round) 15 Ct Quartz (Round)
16.61×16.61 mm vs 16.91×16.91 mm
216.69 mm²   224.58 mm²
Face-up size outline for 15ct Quartz (16.91×16.91mm, round cut)
Face-up size outline for 15ct Morganite (16.61×16.61mm, round cut)
15ct Morganite Round (16.61×16.61mm)
15ct Quartz Round (16.91×16.91mm)
Difference: 4% (7.89 mm²)
15ct Quartz (Round, 16.91×16.91mm) has approx. 4% more face-up area than 15ct Morganite (Round, 16.61×16.61mm).


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