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12ct Quartz (Marquise, 25.54×12.77mm, Brown) vs 12ct Andesine (Marquise, 25.48×12.74mm, Orange)


Quick summary: When looked from above (face-up position), 12ct Quartz (25.54×12.77mm, marquise cut) appears 0.5% larger than 12ct Andesine (25.48×12.74mm, marquise cut). See below how they compare side-by-side on a ring and finger.

12ct Quartz (marquise cut)
vs
 12ct Andesine (marquise cut)
brown
 
orange
25.54×12.77 mm 25.48×12.74 mm
actual size
Actual size of 12ct Quartz (marquise cut, 25.54×12.77mm, Brown color)   Actual size of 12ct Andesine (marquise cut, 25.48×12.74mm, 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 (marquise cut, 25.54×12.77mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 12ct Andesine (marquise cut, 25.48×12.74mm) 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
 76% vs 76%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 12ct Quartz Marquise (25.54×12.77mm, Brown) and 12ct Andesine Marquise (25.48×12.74mm, 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 (Marquise) 12 Ct Andesine (Marquise)
25.54×12.77 mm vs 25.48×12.74 mm
231.56 mm²   230.48 mm²
Face-up size outline for 12ct Quartz (25.54×12.77mm, marquise cut)
Face-up size outline for 12ct Andesine (25.48×12.74mm, marquise cut)
12ct Quartz Marquise (25.54×12.77mm)
12ct Andesine Marquise (25.48×12.74mm)
Difference: 0.5% (1.08 mm²)
12ct Quartz (Marquise, 25.54×12.77mm) has approx. 0.5% more face-up area than 12ct Andesine (Marquise, 25.48×12.74mm).


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