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28ct Quartz (Round, 20.82×20.82mm, Brown) vs 28ct Andesine (Round, 20.77×20.77mm, Orange)


Quick summary: When looked from above (face-up position), 28ct Quartz (20.82×20.82mm, round cut) appears 0.5% larger than 28ct Andesine (20.77×20.77mm, round cut). See below how they compare side-by-side on a ring and finger.

28ct Quartz (round cut)
vs
 28ct Andesine (round cut)
brown
 
orange
20.82×20.82 mm 20.77×20.77 mm
actual size
Actual size of 28ct Quartz (round cut, 20.82×20.82mm, Brown color)   Actual size of 28ct Andesine (round cut, 20.77×20.77mm, Orange color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Brown 28ct Quartz (round cut, 20.82×20.82mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 28ct Andesine (round cut, 20.77×20.77mm) 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
 124% vs 123%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 28ct Quartz Round (20.82×20.82mm, Brown) and 28ct Andesine Round (20.77×20.77mm, Orange) 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, Andesine will face-up slightly smaller than Quartz for a given carat weight, because it has higher specific gravity (2.67 vs. 2.65 - this means it's "slightly 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.


28 Ct Quartz (Round) 28 Ct Andesine (Round)
20.82×20.82 mm vs 20.77×20.77 mm
340.45 mm²   338.82 mm²
Face-up size outline for 28ct Quartz (20.82×20.82mm, round cut)
Face-up size outline for 28ct Andesine (20.77×20.77mm, round cut)
28ct Quartz Round (20.82×20.82mm)
28ct Andesine Round (20.77×20.77mm)
Difference: 0.5% (1.63 mm²)
28ct Quartz (Round, 20.82×20.82mm) has approx. 0.5% more face-up area than 28ct Andesine (Round, 20.77×20.77mm).


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