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13ct Diamond (Pear, 21.28×12.82mm, White) vs 1ct Emerald (Round, 6.82×6.82mm, Green)


Quick summary: When looked from above (face-up position), 13ct Diamond (21.28×12.82mm, pear cut) appears 5.5 times larger than 1ct Emerald (6.82×6.82mm, round cut). See below how they compare side-by-side on a ring and finger.

13ct Diamond (pear cut)
vs
 1ct Emerald (round cut)
white
 
green
21.28×12.82 mm 6.82×6.82 mm
actual size
Actual size of 13ct Diamond (pear cut, 21.28×12.82mm, White color)   Actual size of 1ct Emerald (round cut, 6.82×6.82mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 13ct Diamond (pear cut, 21.28×12.82mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 1ct Emerald (round cut, 6.82×6.82mm) 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
 76% vs 41%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 13ct Diamond Pear (21.28×12.82mm, White) and 1ct Emerald Round (6.82×6.82mm, Green) 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, Diamond will face-up smaller than Emerald for a given carat weight, because it has higher specific gravity (3.52 vs. 2.72 - 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.


13 Ct Diamond (Pear) 1 Ct Emerald (Round)
21.28×12.82 mm vs 6.82×6.82 mm
199.15 mm²   36.53 mm²
Face-up size outline for 13ct Diamond (21.28×12.82mm, pear cut)
Face-up size outline for 1ct Emerald (6.82×6.82mm, round cut)
13ct Diamond Pear (21.28×12.82mm)
1ct Emerald Round (6.82×6.82mm)
Difference: 445% (162.62 mm²)
13ct Diamond (Pear, 21.28×12.82mm) has approx. 445% more face-up area than 1ct Emerald (Round, 6.82×6.82mm). In other words, it's 5.45x larger.


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