×
carat vs. color  length*  width*
  ×

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

1.9ct Diamond (Oval, 10.05×6.7mm, White) vs 2.25ct Sapphire (Oval, 10.05×6.7mm, Blue)


Quick summary: Compared gemstones have equal face-up area.

1.9ct Diamond (oval cut)
vs
 2.25ct Sapphire (oval cut)
white
 
blue
10.05×6.7 mm 10.05×6.7 mm
actual size
Actual size of 1.9ct Diamond (oval cut, 10.05×6.7mm, White color)   Actual size of 2.25ct Sapphire (oval cut, 10.05×6.7mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1.9ct Diamond (oval cut, 10.05×6.7mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 2.25ct Sapphire (oval cut, 10.05×6.7mm) 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
 40% vs 40%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.9ct Diamond Oval (10.05×6.7mm, White) and 2.25ct Sapphire Oval (10.05×6.7mm, Blue) 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, Sapphire will face-up smaller than Diamond for a given carat weight, because it has higher specific gravity (4 vs. 3.52 - this means it's "heavier" compared to Diamond 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.


1.9 Ct Diamond (Oval) 2.25 Ct Sapphire (Oval)
10.05×6.7 mm vs 10.05×6.7 mm
55.21 mm²   55.21 mm²
Face-up size outline for true size of 10.05×6.7mm
1.9ct Diamond Oval (10.05×6.7mm)
2.25ct Sapphire Oval (10.05×6.7mm)
Difference: 0% (0 mm²)
1.9ct Diamond (Oval, 10.05×6.7mm) and 2.25ct Sapphire (Oval, 10.05×6.7mm) have the same face-up area.


Popular comparisons: