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carat vs. color  length*  width*
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1.27 Ct Benitoite (Round)

vs

1.52 Ct Sapphire (Oval)

blue
 
blue
6.3×6.4 mm 8.4×5.9 mm
actual size
Actual size of 1.27ct Benitoite   Actual size of 1.52ct Sapphire
 
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Ring: Skin tone:
Ring width: 3.0 mm
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Left finger image
Ring on left finger
Blue 1.27ct Benitoite on a ring
64 mm
Right finger image
Ring on a right finger
Blue 1.52ct Sapphire on a ring
Your settings
Ring
Gold
Skin tone
Light
Ring diameter
16.9 mm
Ring width
3.0 mm
Finger length
64 mm
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Ring diameter: 16.9 mm
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Actual sizes of 1.27ct Benitoite Round (6.3×6.4mm, Blue) and 1.52ct Sapphire Oval (8.4×5.9mm, 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?

JamesAllen → high-quality blue Sapphires, high-end jewelry and competitive prices. Highly recommended.
Amazon → usually offers a good selection from many different vendors. Worth a check.

Face-up Size

All things being equal, Sapphire will face-up smaller than Benitoite for a given carat weight, because it has higher specific gravity (4 vs. 3.65 - this means it's "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.


1.27 Ct Benitoite (Round) 1.52 Ct Sapphire (Oval)
6.3×6.4 mm vs 8.4×5.9 mm
31.67 mm²   40.64 mm²
Face-up size outline
Face-up size outline
1.27ct Benitoite Round (6.3×6.4mm)
1.52ct Sapphire Oval (8.4×5.9mm)
Difference: 28% (8.97 mm²)
1.52ct Sapphire Oval (8.4×5.9mm) has approx. 28% more face-up area than 1.27ct Benitoite Round (6.3×6.4mm).


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