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4ct Chrysoberyl (Emerald, 10.41×7.71mm, Light Yellowish Green) vs 4ct Diamond (Oval, 12.89×8.59mm, White)


Quick summary: When looked from above (face-up position), 4ct Diamond (12.89×8.59mm, oval cut) appears 22% larger than 4ct Chrysoberyl (10.41×7.71mm, emerald cut). See below how they compare side-by-side on a ring and finger.

4ct Chrysoberyl (emerald cut)
vs
 4ct Diamond (oval cut)
light yellowish green
 
white
10.41×7.71 mm 12.89×8.59 mm
actual size
Actual size of 4ct Chrysoberyl (emerald cut, 10.41×7.71mm, Light Yellowish Green color)   Actual size of 4ct Diamond (oval cut, 12.89×8.59mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Yellowish Green 4ct Chrysoberyl (emerald cut, 10.41×7.71mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 4ct Diamond (oval cut, 12.89×8.59mm) 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
 46% vs 51%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 4ct Chrysoberyl Emerald (10.41×7.71mm, Light Yellowish Green) and 4ct Diamond Oval (12.89×8.59mm, 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, Chrysoberyl will face-up smaller than Diamond for a given carat weight, because it has higher specific gravity (3.73 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.


4 Ct Chrysoberyl (Emerald) 4 Ct Diamond (Oval)
10.41×7.71 mm vs 12.89×8.59 mm
74.64 mm²   90.79 mm²
Face-up size outline for 4ct Diamond (12.89×8.59mm, oval cut)
Face-up size outline for 4ct Chrysoberyl (10.41×7.71mm, emerald cut)
4ct Chrysoberyl Emerald (10.41×7.71mm)
4ct Diamond Oval (12.89×8.59mm)
Difference: 22% (16.15 mm²)
4ct Diamond (Oval, 12.89×8.59mm) has approx. 22% more face-up area than 4ct Chrysoberyl (Emerald, 10.41×7.71mm).


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