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0.08ct Diamond (Round, 2.8×2.8mm, White) vs 0.11ct Ruby (Round, 2.86×2.86mm, Red)


Quick summary: When looked from above (face-up position), 0.11ct Ruby (2.86×2.86mm, round cut) appears 4% larger than 0.08ct Diamond (2.8×2.8mm, round cut). See below how they compare side-by-side on a ring and finger.

0.08ct Diamond (round cut)
vs
 0.11ct Ruby (round cut)
white
 
red
2.8×2.8 mm 2.86×2.86 mm
actual size
Actual size of 0.08ct Diamond (round cut, 2.8×2.8mm, White color)   Actual size of 0.11ct Ruby (round cut, 2.86×2.86mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 0.08ct Diamond (round cut, 2.8×2.8mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 0.11ct Ruby (round cut, 2.86×2.86mm) 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
 17% vs 17%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.08ct Diamond Round (2.8×2.8mm, White) and 0.11ct Ruby Round (2.86×2.86mm, Red) 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, Ruby 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.


0.08 Ct Diamond (Round) 0.11 Ct Ruby (Round)
2.8×2.8 mm vs 2.86×2.86 mm
6.16 mm²   6.42 mm²
Face-up size outline for 0.11ct Ruby (2.86×2.86mm, round cut)
Face-up size outline for 0.08ct Diamond (2.8×2.8mm, round cut)
0.08ct Diamond Round (2.8×2.8mm)
0.11ct Ruby Round (2.86×2.86mm)
Difference: 4% (0.26 mm²)
0.11ct Ruby (Round, 2.86×2.86mm) has approx. 4% more face-up area than 0.08ct Diamond (Round, 2.8×2.8mm).


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