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0.15ct Sapphire (Pear, 4.42×2.66mm, Blue) vs 2ct Topaz (Oval, 9.93×6.62mm, Blue)


Quick summary: When looked from above (face-up position), 2ct Topaz (9.93×6.62mm, oval cut) appears 6.3 times larger than 0.15ct Sapphire (4.42×2.66mm, pear cut). See below how they compare side-by-side on a ring and finger.

0.15ct Sapphire (pear cut)
vs
2ct Topaz (oval cut)
blue
 
blue
4.42×2.66 mm 9.93×6.62 mm
actual size
Actual size of 0.15ct Sapphire (pear cut, 4.42×2.66mm, Blue color)   Actual size of 2ct Topaz (oval cut, 9.93×6.62mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 0.15ct Sapphire (pear cut, 4.42×2.66mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 2ct Topaz (oval cut, 9.93×6.62mm) 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
16% vs 40%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.15ct Sapphire Pear (4.42×2.66mm, Blue) and 2ct Topaz Oval (9.93×6.62mm, 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 Topaz for a given carat weight, because it has higher specific gravity (4 vs. 3.53 - this means it's "heavier" compared to Topaz 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.


0.15 Ct Sapphire (Pear) 2 Ct Topaz (Oval)
4.42×2.66 mm vs 9.93×6.62 mm
8.58 mm²   53.9 mm²
Face-up size outline for 2ct Topaz (9.93×6.62mm, oval cut)
Face-up size outline for 0.15ct Sapphire (4.42×2.66mm, pear cut)
0.15ct Sapphire Pear (4.42×2.66mm)
2ct Topaz Oval (9.93×6.62mm)
Difference: 528% (45.32 mm²)
2ct Topaz (Oval, 9.93×6.62mm) has approx. 528% more face-up area than 0.15ct Sapphire (Pear, 4.42×2.66mm). In other words, it's 6.28x larger.


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