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3ct Hiddenite (Round, 9.31×9.31mm, Light Green ) vs 5ct Ruby (Round, 10.22×10.22mm, Red)


Quick summary: When looked from above (face-up position), 5ct Ruby (10.22×10.22mm, round cut) appears 20% larger than 3ct Hiddenite (9.31×9.31mm, round cut). See below how they compare side-by-side on a ring and finger.

3ct Hiddenite (round cut)
vs
 5ct Ruby (round cut)
light green
 
red
9.31×9.31 mm 10.22×10.22 mm
actual size
Actual size of 3ct Hiddenite (round cut, 9.31×9.31mm, Light Green color)   Actual size of 5ct Ruby (round cut, 10.22×10.22mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Green 3ct Hiddenite (round cut, 9.31×9.31mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 5ct Ruby (round cut, 10.22×10.22mm) 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 61%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 3ct Hiddenite Round (9.31×9.31mm, Light Green ) and 5ct Ruby Round (10.22×10.22mm, 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 Hiddenite for a given carat weight, because it has higher specific gravity (4 vs. 3.18 - this means it's "heavier" compared to Hiddenite 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.


3 Ct Hiddenite (Round) 5 Ct Ruby (Round)
9.31×9.31 mm vs 10.22×10.22 mm
68.08 mm²   82.03 mm²
Face-up size outline for 5ct Ruby (10.22×10.22mm, round cut)
Face-up size outline for 3ct Hiddenite (9.31×9.31mm, round cut)
3ct Hiddenite Round (9.31×9.31mm)
5ct Ruby Round (10.22×10.22mm)
Difference: 20% (13.95 mm²)
5ct Ruby (Round, 10.22×10.22mm) has approx. 20% more face-up area than 3ct Hiddenite (Round, 9.31×9.31mm).


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