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9.5ct Benitoite (Emerald, 13.95×10.33mm, Blue) vs 9.5ct Tanzanite (Emerald, 14.35×10.63mm, Blue)


Quick summary: When looked from above (face-up position), 9.5ct Tanzanite (14.35×10.63mm, emerald cut) appears 6% larger than 9.5ct Benitoite (13.95×10.33mm, emerald cut). See below how they compare side-by-side on a ring and finger.

9.5ct Benitoite (emerald cut)
vs
9.5ct Tanzanite (emerald cut)
blue
 
blue
13.95×10.33 mm 14.35×10.63 mm
actual size
Actual size of 9.5ct Benitoite (emerald cut, 13.95×10.33mm, Blue color)   Actual size of 9.5ct Tanzanite (emerald cut, 14.35×10.63mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 9.5ct Benitoite (emerald cut, 13.95×10.33mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 9.5ct Tanzanite (emerald cut, 14.35×10.63mm) 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
62% vs 63%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 9.5ct Benitoite Emerald (13.95×10.33mm, Blue) and 9.5ct Tanzanite Emerald (14.35×10.63mm, Blue) 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, Benitoite will face-up smaller than Tanzanite for a given carat weight, because it has higher specific gravity (3.65 vs. 3.35 - this means it's "heavier" compared to Tanzanite 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.


9.5 Ct Benitoite (Emerald) 9.5 Ct Tanzanite (Emerald)
13.95×10.33 mm vs 14.35×10.63 mm
134.02 mm²   141.86 mm²
Face-up size outline for 9.5ct Tanzanite (14.35×10.63mm, emerald cut)
Face-up size outline for 9.5ct Benitoite (13.95×10.33mm, emerald cut)
9.5ct Benitoite Emerald (13.95×10.33mm)
9.5ct Tanzanite Emerald (14.35×10.63mm)
Difference: 6% (7.84 mm²)
9.5ct Tanzanite (Emerald, 14.35×10.63mm) has approx. 6% more face-up area than 9.5ct Benitoite (Emerald, 13.95×10.33mm).


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