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26ct Benitoite (Marquise, 29.7×14.85mm, Blue) vs 26ct Alexandrite (Marquise, 29.48×14.74mm, Bluish Green)


Quick summary: When looked from above (face-up position), 26ct Benitoite (29.7×14.85mm, marquise cut) appears 1% larger than 26ct Alexandrite (29.48×14.74mm, marquise cut). See below how they compare side-by-side on a ring and finger.

26ct Benitoite (marquise cut)
vs
 26ct Alexandrite (marquise cut)
blue
 
bluish green
29.7×14.85 mm 29.48×14.74 mm
actual size
Actual size of 26ct Benitoite (marquise cut, 29.7×14.85mm, Blue color)   Actual size of 26ct Alexandrite (marquise cut, 29.48×14.74mm, Bluish Green color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 26ct Benitoite (marquise cut, 29.7×14.85mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Bluish Green 26ct Alexandrite (marquise cut, 29.48×14.74mm) 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
 88% vs 88%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 26ct Benitoite Marquise (29.7×14.85mm, Blue) and 26ct Alexandrite Marquise (29.48×14.74mm, Bluish Green) 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 slightly smaller than Benitoite for a given carat weight, because it has higher specific gravity (3.73 vs. 3.65 - this means it's "slightly heavier" compared to Benitoite 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.


26 Ct Benitoite (Marquise) 26 Ct Alexandrite (Marquise)
29.7×14.85 mm vs 29.48×14.74 mm
313.14 mm²   308.52 mm²
Face-up size outline for 26ct Benitoite (29.7×14.85mm, marquise cut)
Face-up size outline for 26ct Alexandrite (29.48×14.74mm, marquise cut)
26ct Benitoite Marquise (29.7×14.85mm)
26ct Alexandrite Marquise (29.48×14.74mm)
Difference: 1% (4.62 mm²)
26ct Benitoite (Marquise, 29.7×14.85mm) has approx. 1% more face-up area than 26ct Alexandrite (Marquise, 29.48×14.74mm).


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