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2ct Sapphire (Emerald, 8×6mm, Blue) vs 0.5ct Diamond (Trillion, 6.14×6.14mm, White)


Quick summary: When looked from above (face-up position), 2ct Sapphire (8×6mm, emerald cut) appears 91% larger than 0.5ct Diamond (6.14×6.14mm, trillion cut). See below how they compare side-by-side on a ring and finger.

2ct Sapphire (emerald cut)
vs
 0.5ct Diamond (trillion cut)
blue
 
white
8×6 mm 6.14×6.14 mm
actual size
Actual size of 2ct Sapphire (emerald cut, 8×6mm, Blue color)   Actual size of 0.5ct Diamond (trillion cut, 6.14×6.14mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 2ct Sapphire (emerald cut, 8×6mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.5ct Diamond (trillion cut, 6.14×6.14mm) 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
 36% vs 37%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 2ct Sapphire Emerald (8×6mm, Blue) and 0.5ct Diamond Trillion (6.14×6.14mm, White) 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 Ct Sapphire (Emerald) 0.5 Ct Diamond (Trillion)
8×6 mm vs 6.14×6.14 mm
44.64 mm²   23.37 mm²
Face-up size outline for 2ct Sapphire (8×6mm, emerald cut)
Face-up size outline for 0.5ct Diamond (6.14×6.14mm, trillion cut)
2ct Sapphire Emerald (8×6mm)
0.5ct Diamond Trillion (6.14×6.14mm)
Difference: 91% (21.27 mm²)
2ct Sapphire (Emerald, 8×6mm) has approx. 91% more face-up area than 0.5ct Diamond (Trillion, 6.14×6.14mm).


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