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27ct Ruby (Pear, 24.92×15.01mm, Red) vs 25ct Diamond (Pear, 26.46×15.94mm, Light Brown)


Quick summary: When looked from above (face-up position), 25ct Colored Diamond (26.46×15.94mm, pear cut) appears 13% larger than 27ct Ruby (24.92×15.01mm, pear cut). See below how they compare side-by-side on a ring and finger.

27ct Ruby (pear cut)
vs
 25ct Diamond (pear cut)
red
 
light brown
24.92×15.01 mm 26.46×15.94 mm
actual size
Actual size of 27ct Ruby (pear cut, 24.92×15.01mm, Red color)   Actual size of 25ct Diamond (pear cut, 26.46×15.94mm, Light Brown color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 27ct Ruby (pear cut, 24.92×15.01mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Brown 25ct Diamond (pear cut, 26.46×15.94mm) 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
 89% vs 95%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 27ct Ruby Pear (24.92×15.01mm, Red) and 25ct Diamond Pear (26.46×15.94mm, Light Brown) 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 Diamond for a given carat weight, because it has higher specific gravity (4 vs. 3.52 - this means it's "heavier" compared to Diamond 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.


27 Ct Ruby (Pear) 25 Ct Colored Diamond (Pear)
24.92×15.01 mm vs 26.46×15.94 mm
273.06 mm²   307.89 mm²
Face-up size outline for 25ct Diamond (26.46×15.94mm, pear cut)
Face-up size outline for 27ct Ruby (24.92×15.01mm, pear cut)
27ct Ruby Pear (24.92×15.01mm)
25ct Colored Diamond Pear (26.46×15.94mm)
Difference: 13% (34.83 mm²)
25ct Colored Diamond (Pear, 26.46×15.94mm) has approx. 13% more face-up area than 27ct Ruby (Pear, 24.92×15.01mm).


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