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0.2ct Emerald (Emerald, 4.25×3.15mm, Green) vs 1ct Diamond (Emerald, 6.68×4.95mm, White)


Quick summary: When looked from above (face-up position), 1ct Diamond (6.68×4.95mm, emerald cut) appears 2.5 times larger than 0.2ct Emerald (4.25×3.15mm, emerald cut). See below how they compare side-by-side on a ring and finger.

0.2ct Emerald (emerald cut)
vs
 1ct Diamond (emerald cut)
green
 
white
4.25×3.15 mm 6.68×4.95 mm
actual size
Actual size of 0.2ct Emerald (emerald cut, 4.25×3.15mm, Green color)   Actual size of 1ct Diamond (emerald cut, 6.68×4.95mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 0.2ct Emerald (emerald cut, 4.25×3.15mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1ct Diamond (emerald cut, 6.68×4.95mm) 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
 19% vs 30%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.2ct Emerald Emerald (4.25×3.15mm, Green) and 1ct Diamond Emerald (6.68×4.95mm, White) 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.


0.2 Ct Emerald (Emerald) 1 Ct Diamond (Emerald)
4.25×3.15 mm vs 6.68×4.95 mm
12.45 mm²   30.75 mm²
Face-up size outline for 1ct Diamond (6.68×4.95mm, emerald cut)
Face-up size outline for 0.2ct Emerald (4.25×3.15mm, emerald cut)
0.2ct Emerald Emerald (4.25×3.15mm)
1ct Diamond Emerald (6.68×4.95mm)
Difference: 147% (18.3 mm²)
1ct Diamond (Emerald, 6.68×4.95mm) has approx. 147% more face-up area than 0.2ct Emerald (Emerald, 4.25×3.15mm). In other words, it's 2.47x larger.


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