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1.75ct Alexandrite (Pear, 10.49×6.32mm, Bluish Green) vs 1.75ct Diamond (Pear, 10.91×6.57mm, White)


Quick summary: When looked from above (face-up position), 1.75ct Diamond (10.91×6.57mm, pear cut) appears 8% larger than 1.75ct Alexandrite (10.49×6.32mm, pear cut). See below how they compare side-by-side on a ring and finger.

1.75ct Alexandrite (pear cut)
vs
 1.75ct Diamond (pear cut)
bluish green
 
white
10.49×6.32 mm 10.91×6.57 mm
actual size
Actual size of 1.75ct Alexandrite (pear cut, 10.49×6.32mm, Bluish Green color)   Actual size of 1.75ct Diamond (pear cut, 10.91×6.57mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Bluish Green 1.75ct Alexandrite (pear cut, 10.49×6.32mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1.75ct Diamond (pear cut, 10.91×6.57mm) 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
 38% vs 39%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1.75ct Alexandrite Pear (10.49×6.32mm, Bluish Green) and 1.75ct Diamond Pear (10.91×6.57mm, White) 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, Alexandrite will face-up smaller than Diamond for a given carat weight, because it has higher specific gravity (3.73 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.


1.75 Ct Alexandrite (Pear) 1.75 Ct Diamond (Pear)
10.49×6.32 mm vs 10.91×6.57 mm
48.4 mm²   52.33 mm²
Face-up size outline for 1.75ct Diamond (10.91×6.57mm, pear cut)
Face-up size outline for 1.75ct Alexandrite (10.49×6.32mm, pear cut)
1.75ct Alexandrite Pear (10.49×6.32mm)
1.75ct Diamond Pear (10.91×6.57mm)
Difference: 8% (3.93 mm²)
1.75ct Diamond (Pear, 10.91×6.57mm) has approx. 8% more face-up area than 1.75ct Alexandrite (Pear, 10.49×6.32mm).


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