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4.09ct Beryl (Oval, 11.91×9.39mm, Yellow) vs 1ct Diamond (Oval, 8.12×5.41mm, White)


Quick summary: When looked from above (face-up position), 4.09ct Beryl (11.91×9.39mm, oval cut) appears 2.6 times larger than 1ct Diamond (8.12×5.41mm, oval cut). See below how they compare side-by-side on a ring and finger.

4.09ct Beryl (oval cut)
vs
1ct Diamond (oval cut)
yellow
 
white
11.91×9.39 mm 8.12×5.41 mm
actual size
Actual size of 4.09ct Beryl (oval cut, 11.91×9.39mm, Yellow color)   Actual size of 1ct Diamond (oval cut, 8.12×5.41mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Yellow 4.09ct Beryl (oval cut, 11.91×9.39mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1ct Diamond (oval cut, 8.12×5.41mm) 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
56% vs 33%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 4.09ct Beryl Oval (11.91×9.39mm, Yellow) and 1ct Diamond Oval (8.12×5.41mm, 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 Beryl for a given carat weight, because it has higher specific gravity (3.52 vs. 2.72 - this means it's "heavier" compared to Beryl 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.


4.09 Ct Beryl (Oval) 1 Ct Diamond (Oval)
11.91×9.39 mm vs 8.12×5.41 mm
91.7 mm²   36.02 mm²
Face-up size outline for 4.09ct Beryl (11.91×9.39mm, oval cut)
Face-up size outline for 1ct Diamond (8.12×5.41mm, oval cut)
4.09ct Beryl Oval (11.91×9.39mm)
1ct Diamond Oval (8.12×5.41mm)
Difference: 155% (55.68 mm²)
4.09ct Beryl (Oval, 11.91×9.39mm) has approx. 155% more face-up area than 1ct Diamond (Oval, 8.12×5.41mm). In other words, it's 2.55x larger.


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