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2.7ct Spinel (Baguette, 9.99×6.66mm, Blue) vs 3ct Ruby (Emerald, 9×7mm, Red)


Quick summary: When looked from above (face-up position), 2.7ct Spinel (9.99×6.66mm, baguette cut) appears 14% larger than 3ct Ruby (9×7mm, emerald cut). See below how they compare side-by-side on a ring and finger.

2.7ct Spinel (baguette cut)
vs
 3ct Ruby (emerald cut)
blue
 
red
9.99×6.66 mm 9×7 mm
actual size
Actual size of 2.7ct Spinel (baguette cut, 9.99×6.66mm, Blue color)   Actual size of 3ct Ruby (emerald cut, 9×7mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 2.7ct Spinel (baguette cut, 9.99×6.66mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 3ct Ruby (emerald cut, 9×7mm) 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
 40% vs 42%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2.7ct Spinel Baguette (9.99×6.66mm, Blue) and 3ct Ruby Emerald (9×7mm, 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 Spinel for a given carat weight, because it has higher specific gravity (4 vs. 3.6 - this means it's "heavier" compared to Spinel 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.


2.7 Ct Spinel (Baguette) 3 Ct Ruby (Emerald)
9.99×6.66 mm vs 9×7 mm
66.53 mm²   58.59 mm²
Face-up size outline for 2.7ct Spinel (9.99×6.66mm, baguette cut)
Face-up size outline for 3ct Ruby (9×7mm, emerald cut)
2.7ct Spinel Baguette (9.99×6.66mm)
3ct Ruby Emerald (9×7mm)
Difference: 14% (7.94 mm²)
2.7ct Spinel (Baguette, 9.99×6.66mm) has approx. 14% more face-up area than 3ct Ruby (Emerald, 9×7mm).


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