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5.64ct Spinel (Trillion, 12.96×12.96mm, Red) vs 3.3ct Emerald (Emerald, 10.84×8.03mm, Green)


Quick summary: When looked from above (face-up position), 5.64ct Spinel (12.96×12.96mm, trillion cut) appears 29% larger than 3.3ct Emerald (10.84×8.03mm, emerald cut). See below how they compare side-by-side on a ring and finger.

5.64ct Spinel (trillion cut)
vs
 3.3ct Emerald (emerald cut)
red
 
green
12.96×12.96 mm 10.84×8.03 mm
actual size
Actual size of 5.64ct Spinel (trillion cut, 12.96×12.96mm, Red color)   Actual size of 3.3ct Emerald (emerald cut, 10.84×8.03mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 5.64ct Spinel (trillion cut, 12.96×12.96mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 3.3ct Emerald (emerald cut, 10.84×8.03mm) 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
 77% vs 48%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 5.64ct Spinel Trillion (12.96×12.96mm, Red) and 3.3ct Emerald Emerald (10.84×8.03mm, 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, Spinel will face-up smaller than Emerald for a given carat weight, because it has higher specific gravity (3.6 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.


5.64 Ct Spinel (Trillion) 3.3 Ct Emerald (Emerald)
12.96×12.96 mm vs 10.84×8.03 mm
104.14 mm²   80.95 mm²
Face-up size outline for 5.64ct Spinel (12.96×12.96mm, trillion cut)
Face-up size outline for 3.3ct Emerald (10.84×8.03mm, emerald cut)
5.64ct Spinel Trillion (12.96×12.96mm)
3.3ct Emerald Emerald (10.84×8.03mm)
Difference: 29% (23.19 mm²)
5.64ct Spinel (Trillion, 12.96×12.96mm) has approx. 29% more face-up area than 3.3ct Emerald (Emerald, 10.84×8.03mm).


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