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12ct Quartz (Emerald, 16.77×12.42mm, Brown) vs 12ct Andesine (Emerald, 16.73×12.39mm, Orange)


Quick summary: When looked from above (face-up position), 12ct Quartz (16.77×12.42mm, emerald cut) appears 0.5% larger than 12ct Andesine (16.73×12.39mm, emerald cut). See below how they compare side-by-side on a ring and finger.

12ct Quartz (emerald cut)
vs
 12ct Andesine (emerald cut)
brown
 
orange
16.77×12.42 mm 16.73×12.39 mm
actual size
Actual size of 12ct Quartz (emerald cut, 16.77×12.42mm, Brown color)   Actual size of 12ct Andesine (emerald cut, 16.73×12.39mm, Orange color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Brown 12ct Quartz (emerald cut, 16.77×12.42mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 12ct Andesine (emerald cut, 16.73×12.39mm) 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
 74% vs 74%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 12ct Quartz Emerald (16.77×12.42mm, Brown) and 12ct Andesine Emerald (16.73×12.39mm, 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.


12 Ct Quartz (Emerald) 12 Ct Andesine (Emerald)
16.77×12.42 mm vs 16.73×12.39 mm
193.7 mm²   192.77 mm²
Face-up size outline for 12ct Quartz (16.77×12.42mm, emerald cut)
Face-up size outline for 12ct Andesine (16.73×12.39mm, emerald cut)
12ct Quartz Emerald (16.77×12.42mm)
12ct Andesine Emerald (16.73×12.39mm)
Difference: 0.5% (0.93 mm²)
12ct Quartz (Emerald, 16.77×12.42mm) has approx. 0.5% more face-up area than 12ct Andesine (Emerald, 16.73×12.39mm).


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