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1.06ct Sapphire (Oval, 7.71×5.14mm, Blue) vs 1.59ct Tanzanite (Cushion, 6.96×6.96mm, Blue)


Quick summary: When looked from above (face-up position), 1.59ct Tanzanite (6.96×6.96mm, cushion cut) appears 34% larger than 1.06ct Sapphire (7.71×5.14mm, oval cut). See below how they compare side-by-side on a ring and finger.

1.06ct Sapphire (oval cut)
vs
1.59ct Tanzanite (cushion cut)
blue
 
blue
7.71×5.14 mm 6.96×6.96 mm
actual size
Actual size of 1.06ct Sapphire (oval cut, 7.71×5.14mm, Blue color)   Actual size of 1.59ct Tanzanite (cushion cut, 6.96×6.96mm, Blue color)
 
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Left finger image
Ring on left finger
Blue 1.06ct Sapphire (oval cut, 7.71×5.14mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 1.59ct Tanzanite (cushion cut, 6.96×6.96mm) 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
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Ring diameter: 16.9 mm
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Actual sizes of 1.06ct Sapphire Oval (7.71×5.14mm, Blue) and 1.59ct Tanzanite Cushion (6.96×6.96mm, 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, Sapphire will face-up smaller than Tanzanite for a given carat weight, because it has higher specific gravity (4 vs. 3.3 - 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.


1.06 Ct Sapphire (Oval) 1.59 Ct Tanzanite (Cushion)
7.71×5.14 mm vs 6.96×6.96 mm
32.5 mm²   43.6 mm²
Face-up size outline for 1.59ct Tanzanite (6.96×6.96mm, cushion cut)
Face-up size outline for 1.06ct Sapphire (7.71×5.14mm, oval cut)
1.06ct Sapphire Oval (7.71×5.14mm)
1.59ct Tanzanite Cushion (6.96×6.96mm)
Difference: 34% (11.1 mm²)
1.59ct Tanzanite Cushion (6.96×6.96mm) has approx. 34% more face-up area than 1.06ct Sapphire Oval (7.71×5.14mm).


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