×
carat vs. color  length*  width*
  ×

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

0.45ct Ruby (Round, 4.58×4.58mm, Red) vs 0.33ct Sapphire (Round, 4.13×4.13mm, Blue)


Quick summary: When looked from above (face-up position), 0.45ct Ruby (4.58×4.58mm, round cut) appears 23% larger than 0.33ct Sapphire (4.13×4.13mm, round cut). See below how they compare side-by-side on a ring and finger.

0.45ct Ruby (round cut)
vs
 0.33ct Sapphire (round cut)
red
 
blue
4.58×4.58 mm 4.13×4.13 mm
actual size
Actual size of 0.45ct Ruby (round cut, 4.58×4.58mm, Red color)   Actual size of 0.33ct Sapphire (round cut, 4.13×4.13mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 0.45ct Ruby (round cut, 4.58×4.58mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 0.33ct Sapphire (round cut, 4.13×4.13mm) 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
 28% vs 25%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.45ct Ruby Round (4.58×4.58mm, Red) and 0.33ct Sapphire Round (4.13×4.13mm, 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

Ruby and Sapphire have the same specific gravity so their face-up size depends on the weight, shape and 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.


0.45 Ct Ruby (Round) 0.33 Ct Sapphire (Round)
4.58×4.58 mm vs 4.13×4.13 mm
16.47 mm²   13.4 mm²
Face-up size outline for 0.45ct Ruby (4.58×4.58mm, round cut)
Face-up size outline for 0.33ct Sapphire (4.13×4.13mm, round cut)
0.45ct Ruby Round (4.58×4.58mm)
0.33ct Sapphire Round (4.13×4.13mm)
Difference: 23% (3.07 mm²)
0.45ct Ruby (Round, 4.58×4.58mm) has approx. 23% more face-up area than 0.33ct Sapphire (Round, 4.13×4.13mm).


Popular comparisons: