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2ct Alexandrite (Oval, 9.78×6.52mm, Bluish Green) vs 1.13ct Diamond (Round, 6.77×6.77mm, White)


Quick summary: When looked from above (face-up position), 2ct Alexandrite (9.78×6.52mm, oval cut) appears 45% larger than 1.13ct Diamond (6.77×6.77mm, round cut). See below how they compare side-by-side on a ring and finger.

2ct Alexandrite (oval cut)
vs
 1.13ct Diamond (round cut)
bluish green
 
white
9.78×6.52 mm 6.77×6.77 mm
actual size
Actual size of 2ct Alexandrite (oval cut, 9.78×6.52mm, Bluish Green color)   Actual size of 1.13ct Diamond (round cut, 6.77×6.77mm, 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 2ct Alexandrite (oval cut, 9.78×6.52mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1.13ct Diamond (round cut, 6.77×6.77mm) 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
 39% vs 41%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 2ct Alexandrite Oval (9.78×6.52mm, Bluish Green) and 1.13ct Diamond Round (6.77×6.77mm, 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.


2 Ct Alexandrite (Oval) 1.13 Ct Diamond (Round)
9.78×6.52 mm vs 6.77×6.77 mm
52.29 mm²   36 mm²
Face-up size outline for 2ct Alexandrite (9.78×6.52mm, oval cut)
Face-up size outline for 1.13ct Diamond (6.77×6.77mm, round cut)
2ct Alexandrite Oval (9.78×6.52mm)
1.13ct Diamond Round (6.77×6.77mm)
Difference: 45% (16.29 mm²)
2ct Alexandrite (Oval, 9.78×6.52mm) has approx. 45% more face-up area than 1.13ct Diamond (Round, 6.77×6.77mm).


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