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2.7ct Diopside (Emerald, 9.48×7.02mm, Green) vs 3ct Ruby (Emerald, 9×7mm, Red)


Quick summary: When looked from above (face-up position), 2.7ct Diopside (9.48×7.02mm, emerald cut) appears 6% larger than 3ct Ruby (9×7mm, emerald cut). See below how they compare side-by-side on a ring and finger.

2.7ct Diopside (emerald cut)
vs
3ct Ruby (emerald cut)
green
 
red
9.48×7.02 mm 9×7 mm
actual size
Actual size of 2.7ct Diopside (emerald cut, 9.48×7.02mm, Green color)   Actual size of 3ct Ruby (emerald cut, 9×7mm, Red color)
 
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Left finger image
Ring on left finger
Green 2.7ct Diopside (emerald cut, 9.48×7.02mm) 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
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Ring diameter: 16.9 mm
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Actual sizes of 2.7ct Diopside Emerald (9.48×7.02mm, Green) 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 Diopside for a given carat weight, because it has higher specific gravity (4 vs. 3.3 - this means it's "heavier" compared to Diopside 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 Diopside (Emerald) 3 Ct Ruby (Emerald)
9.48×7.02 mm vs 9×7 mm
61.89 mm²   58.59 mm²
Face-up size outline for 2.7ct Diopside (9.48×7.02mm, emerald cut)
Face-up size outline for 3ct Ruby (9×7mm, emerald cut)
2.7ct Diopside Emerald (9.48×7.02mm)
3ct Ruby Emerald (9×7mm)
Difference: 6% (3.3 mm²)
2.7ct Diopside Emerald (9.48×7.02mm) has approx. 6% more face-up area than 3ct Ruby Emerald (9×7mm).


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