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1.4ct Quartz (Marquise, 12.66×6.33mm, Orangey Red) vs 0.17ct Diamond (Round, 3.6×3.6mm, White)


Quick summary: When looked from above (face-up position), 1.4ct Quartz (12.66×6.33mm, marquise cut) appears 5.6 times larger than 0.17ct Diamond (3.6×3.6mm, round cut). See below how they compare side-by-side on a ring and finger.

1.4ct Quartz (marquise cut)
vs
 0.17ct Diamond (round cut)
orangey red
 
white
12.66×6.33 mm 3.6×3.6 mm
actual size
Actual size of 1.4ct Quartz (marquise cut, 12.66×6.33mm, Orangey Red color)   Actual size of 0.17ct Diamond (round cut, 3.6×3.6mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Orangey Red 1.4ct Quartz (marquise cut, 12.66×6.33mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.17ct Diamond (round cut, 3.6×3.6mm) 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
 38% vs 22%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1.4ct Quartz Marquise (12.66×6.33mm, Orangey Red) and 0.17ct Diamond Round (3.6×3.6mm, White) 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, Diamond will face-up smaller than Quartz for a given carat weight, because it has higher specific gravity (3.52 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.


1.4 Ct Quartz (Marquise) 0.17 Ct Diamond (Round)
12.66×6.33 mm vs 3.6×3.6 mm
56.9 mm²   10.18 mm²
Face-up size outline for 1.4ct Quartz (12.66×6.33mm, marquise cut)
Face-up size outline for 0.17ct Diamond (3.6×3.6mm, round cut)
1.4ct Quartz Marquise (12.66×6.33mm)
0.17ct Diamond Round (3.6×3.6mm)
Difference: 459% (46.72 mm²)
1.4ct Quartz (Marquise, 12.66×6.33mm) has approx. 459% more face-up area than 0.17ct Diamond (Round, 3.6×3.6mm). In other words, it's 5.59x larger.


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