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1ct Emerald (Round, 6.82×6.82mm, Green) vs 0.85ct Ruby (Pear, 7.17×5.11mm, Red)


Quick summary: When looked from above (face-up position), 1ct Emerald (6.82×6.82mm, round cut) appears 37% larger than 0.85ct Ruby (7.17×5.11mm, pear cut). See below how they compare side-by-side on a ring and finger.

1ct Emerald (round cut)
vs
0.85ct Ruby (pear cut)
green
 
red
6.82×6.82 mm 7.17×5.11 mm
actual size
Actual size of 1ct Emerald (round cut, 6.82×6.82mm, Green color)   Actual size of 0.85ct Ruby (pear cut, 7.17×5.11mm, Red color)
 
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Ring width: 3.0 mm
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Left finger image
Ring on left finger
Green 1ct Emerald (round cut, 6.82×6.82mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 0.85ct Ruby (pear cut, 7.17×5.11mm) 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
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Ring diameter: 16.9 mm
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Actual sizes of 1ct Emerald Round (6.82×6.82mm, Green) and 0.85ct Ruby Pear (7.17×5.11mm, 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 Emerald for a given carat weight, because it has higher specific gravity (4 vs. 2.7 - this means it's "heavier" compared to Emerald 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 Ct Emerald (Round) 0.85 Ct Ruby (Pear)
6.82×6.82 mm vs 7.17×5.11 mm
36.53 mm²   26.75 mm²
Face-up size outline for 1ct Emerald (6.82×6.82mm, round cut)
Face-up size outline for 0.85ct Ruby (7.17×5.11mm, pear cut)
1ct Emerald Round (6.82×6.82mm)
0.85ct Ruby Pear (7.17×5.11mm)
Difference: 37% (9.78 mm²)
1ct Emerald Round (6.82×6.82mm) has approx. 37% more face-up area than 0.85ct Ruby Pear (7.17×5.11mm).


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