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1.23ct Diamond (Emerald, 7.16×5.3mm, White) vs 2.06ct Sapphire (Oval, 9.63×6.42mm, Blue)


Quick summary: When looked from above (face-up position), 2.06ct Sapphire (9.63×6.42mm, oval cut) appears 44% larger than 1.23ct Diamond (7.16×5.3mm, emerald cut). See below how they compare side-by-side on a ring and finger.

1.23ct Diamond (emerald cut)
vs
 2.06ct Sapphire (oval cut)
white
 
blue
7.16×5.3 mm 9.63×6.42 mm
actual size
Actual size of 1.23ct Diamond (emerald cut, 7.16×5.3mm, White color)   Actual size of 2.06ct Sapphire (oval cut, 9.63×6.42mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1.23ct Diamond (emerald cut, 7.16×5.3mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 2.06ct Sapphire (oval cut, 9.63×6.42mm) 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
 32% vs 38%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1.23ct Diamond Emerald (7.16×5.3mm, White) and 2.06ct Sapphire Oval (9.63×6.42mm, 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 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.


1.23 Ct Diamond (Emerald) 2.06 Ct Sapphire (Oval)
7.16×5.3 mm vs 9.63×6.42 mm
35.29 mm²   50.7 mm²
Face-up size outline for 2.06ct Sapphire (9.63×6.42mm, oval cut)
Face-up size outline for 1.23ct Diamond (7.16×5.3mm, emerald cut)
1.23ct Diamond Emerald (7.16×5.3mm)
2.06ct Sapphire Oval (9.63×6.42mm)
Difference: 44% (15.41 mm²)
2.06ct Sapphire (Oval, 9.63×6.42mm) has approx. 44% more face-up area than 1.23ct Diamond (Emerald, 7.16×5.3mm).


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