×
carat vs. color  length*  width*
  ×

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

0.8ct Diamond (Marquise, 8.6×4.86mm, White) vs 4ct Diamond (Marquise, 16.48×8.24mm, White)


Quick summary: When looked from above (face-up position), 4ct Diamond (16.48×8.24mm, marquise cut) appears 3.3 times larger than 0.8ct Diamond (8.6×4.86mm, marquise cut). See below how they compare side-by-side on a ring and finger.

0.8ct Diamond (marquise cut)
vs
4ct Diamond (marquise cut)
white
 
white
8.6×4.86 mm 16.48×8.24 mm
actual size
Actual size of 0.8ct Diamond (marquise cut, 8.6×4.86mm, White color)   Actual size of 4ct Diamond (marquise cut, 16.48×8.24mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 0.8ct Diamond (marquise cut, 8.6×4.86mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 4ct Diamond (marquise cut, 16.48×8.24mm) 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
29% vs 49%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.8ct Diamond Marquise (8.6×4.86mm, White) and 4ct Diamond Marquise (16.48×8.24mm, 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

The face-up size depends on the shape of the gem, its weight and 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.


0.8 Ct Diamond (Marquise) 4 Ct Diamond (Marquise)
8.6×4.86 mm vs 16.48×8.24 mm
29.68 mm²   96.41 mm²
Face-up size outline for 4ct Diamond (16.48×8.24mm, marquise cut)
Face-up size outline for 0.8ct Diamond (8.6×4.86mm, marquise cut)
0.8ct Diamond Marquise (8.6×4.86mm)
4ct Diamond Marquise (16.48×8.24mm)
Difference: 225% (66.73 mm²)
4ct Diamond (Marquise, 16.48×8.24mm) has approx. 225% more face-up area than 0.8ct Diamond (Marquise, 8.6×4.86mm). In other words, it's 3.25x larger.


Popular comparisons: