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2.9ct Diamond (Round, 9.27×9.27mm, White) vs 0.11ct Sapphire (Round, 2.86×2.86mm, Violet)


Quick summary: When looked from above (face-up position), 2.9ct Diamond (9.27×9.27mm, round cut) appears 10.5 times larger than 0.11ct Sapphire (2.86×2.86mm, round cut). See below how they compare side-by-side on a ring and finger.

2.9ct Diamond (round cut)
vs
 0.11ct Sapphire (round cut)
white
 
violet
9.27×9.27 mm 2.86×2.86 mm
actual size
Actual size of 2.9ct Diamond (round cut, 9.27×9.27mm, White color)   Actual size of 0.11ct Sapphire (round cut, 2.86×2.86mm, Violet color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 2.9ct Diamond (round cut, 9.27×9.27mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Violet 0.11ct Sapphire (round cut, 2.86×2.86mm) 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
 55% vs 17%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 2.9ct Diamond Round (9.27×9.27mm, White) and 0.11ct Sapphire Round (2.86×2.86mm, Violet) 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 Diamond for a given carat weight, because it has higher specific gravity (4 vs. 3.52 - this means it's "heavier" compared to Diamond 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.


2.9 Ct Diamond (Round) 0.11 Ct Sapphire (Round)
9.27×9.27 mm vs 2.86×2.86 mm
67.49 mm²   6.42 mm²
Face-up size outline for 2.9ct Diamond (9.27×9.27mm, round cut)
Face-up size outline for 0.11ct Sapphire (2.86×2.86mm, round cut)
2.9ct Diamond Round (9.27×9.27mm)
0.11ct Sapphire Round (2.86×2.86mm)
Difference: 951% (61.07 mm²)
2.9ct Diamond (Round, 9.27×9.27mm) has approx. 951% more face-up area than 0.11ct Sapphire (Round, 2.86×2.86mm). In other words, it's 10.51x larger.


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