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0.4ct Ruby (Oval, 5.58×3.72mm, Red) vs 0.2ct Sapphire (Round, 3.5×3.5mm, Blue)


Quick summary: When looked from above (face-up position), 0.4ct Ruby (5.58×3.72mm, oval cut) appears 77% larger than 0.2ct Sapphire (3.5×3.5mm, round cut). See below how they compare side-by-side on a ring and finger.

0.4ct Ruby (oval cut)
vs
 0.2ct Sapphire (round cut)
red
 
blue
5.58×3.72 mm 3.5×3.5 mm
actual size
Actual size of 0.4ct Ruby (oval cut, 5.58×3.72mm, Red color)   Actual size of 0.2ct Sapphire (round cut, 3.5×3.5mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 0.4ct Ruby (oval cut, 5.58×3.72mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 0.2ct Sapphire (round cut, 3.5×3.5mm) 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
 23% vs 21%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.4ct Ruby Oval (5.58×3.72mm, Red) and 0.2ct Sapphire Round (3.5×3.5mm, 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.


0.4 Ct Ruby (Oval) 0.2 Ct Sapphire (Round)
5.58×3.72 mm vs 3.5×3.5 mm
17.02 mm²   9.62 mm²
Face-up size outline for 0.4ct Ruby (5.58×3.72mm, oval cut)
Face-up size outline for 0.2ct Sapphire (3.5×3.5mm, round cut)
0.4ct Ruby Oval (5.58×3.72mm)
0.2ct Sapphire Round (3.5×3.5mm)
Difference: 77% (7.4 mm²)
0.4ct Ruby (Oval, 5.58×3.72mm) has approx. 77% more face-up area than 0.2ct Sapphire (Round, 3.5×3.5mm).


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