×
carat vs. color  length*  width*
  ×

(or examine a )
* size in mm (optional)

4ct Emerald (Oval, 13.68×9.12mm, Green) vs 4ct Quartz (Round, 10.89×10.89mm, Orangey Red)


Quick summary: When looked from above (face-up position), 4ct Emerald (13.68×9.12mm, oval cut) appears 10% larger than 4ct Quartz (10.89×10.89mm, round cut). See below how they compare side-by-side on a ring and finger.

4ct Emerald (oval cut)
vs
 4ct Quartz (round cut)
green
 
orangey red
13.68×9.12 mm 10.89×10.89 mm
actual size
Actual size of 4ct Emerald (oval cut, 13.68×9.12mm, Green color)   Actual size of 4ct Quartz (round cut, 10.89×10.89mm, Orangey Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 4ct Emerald (oval cut, 13.68×9.12mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orangey Red 4ct Quartz (round cut, 10.89×10.89mm) 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
 54% vs 65%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 4ct Emerald Oval (13.68×9.12mm, Green) and 4ct Quartz Round (10.89×10.89mm, Orangey Red) 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, Emerald will face-up slightly smaller than Quartz for a given carat weight, because it has higher specific gravity (2.72 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.


4 Ct Emerald (Oval) 4 Ct Quartz (Round)
13.68×9.12 mm vs 10.89×10.89 mm
102.3 mm²   93.14 mm²
Face-up size outline for 4ct Emerald (13.68×9.12mm, oval cut)
Face-up size outline for 4ct Quartz (10.89×10.89mm, round cut)
4ct Emerald Oval (13.68×9.12mm)
4ct Quartz Round (10.89×10.89mm)
Difference: 10% (9.16 mm²)
4ct Emerald (Oval, 13.68×9.12mm) has approx. 10% more face-up area than 4ct Quartz (Round, 10.89×10.89mm).


Popular comparisons: