×
carat vs. color  length*  width*
  ×

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

19ct Ruby (Emerald, 17.04×12.62mm, Red) vs 1ct Sapphire (Emerald, 6.39×4.73mm, Yellow)


Quick summary: When looked from above (face-up position), 19ct Ruby (17.04×12.62mm, emerald cut) appears 7.1 times larger than 1ct Sapphire (6.39×4.73mm, emerald cut). See below how they compare side-by-side on a ring and finger.

19ct Ruby (emerald cut)
vs
 1ct Sapphire (emerald cut)
red
 
yellow
17.04×12.62 mm 6.39×4.73 mm
actual size
Actual size of 19ct Ruby (emerald cut, 17.04×12.62mm, Red color)   Actual size of 1ct Sapphire (emerald cut, 6.39×4.73mm, Yellow color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 19ct Ruby (emerald cut, 17.04×12.62mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Yellow 1ct Sapphire (emerald cut, 6.39×4.73mm) 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
 75% vs 28%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 19ct Ruby Emerald (17.04×12.62mm, Red) and 1ct Sapphire Emerald (6.39×4.73mm, Yellow) 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.


19 Ct Ruby (Emerald) 1 Ct Sapphire (Emerald)
17.04×12.62 mm vs 6.39×4.73 mm
199.99 mm²   28.11 mm²
Face-up size outline for 19ct Ruby (17.04×12.62mm, emerald cut)
Face-up size outline for 1ct Sapphire (6.39×4.73mm, emerald cut)
19ct Ruby Emerald (17.04×12.62mm)
1ct Sapphire Emerald (6.39×4.73mm)
Difference: 611% (171.88 mm²)
19ct Ruby (Emerald, 17.04×12.62mm) has approx. 611% more face-up area than 1ct Sapphire (Emerald, 6.39×4.73mm). In other words, it's 7.11x larger.


Popular comparisons: