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3.66ct Sapphire (Emerald, 9.77×6.94mm, Dark Bluish Green) vs 0.5ct Diamond (Baguette, 5.75×3.83mm, White)


Quick summary: When looked from above (face-up position), 3.66ct Sapphire (9.77×6.94mm, emerald cut) appears 2.9 times larger than 0.5ct Diamond (5.75×3.83mm, baguette cut). See below how they compare side-by-side on a ring and finger.

3.66ct Sapphire (emerald cut)
vs
 0.5ct Diamond (baguette cut)
dark bluish green
 
white
9.77×6.94 mm 5.75×3.83 mm
actual size
Actual size of 3.66ct Sapphire (emerald cut, 9.77×6.94mm, Dark Bluish Green color)   Actual size of 0.5ct Diamond (baguette cut, 5.75×3.83mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Dark Bluish Green 3.66ct Sapphire (emerald cut, 9.77×6.94mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.5ct Diamond (baguette cut, 5.75×3.83mm) 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
 42% vs 23%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 3.66ct Sapphire Emerald (9.77×6.94mm, Dark Bluish Green) and 0.5ct Diamond Baguette (5.75×3.83mm, 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.


3.66 Ct Sapphire (Emerald) 0.5 Ct Diamond (Baguette)
9.77×6.94 mm vs 5.75×3.83 mm
63.06 mm²   22.02 mm²
Face-up size outline for 3.66ct Sapphire (9.77×6.94mm, emerald cut)
Face-up size outline for 0.5ct Diamond (5.75×3.83mm, baguette cut)
3.66ct Sapphire Emerald (9.77×6.94mm)
0.5ct Diamond Baguette (5.75×3.83mm)
Difference: 186% (41.04 mm²)
3.66ct Sapphire (Emerald, 9.77×6.94mm) has approx. 186% more face-up area than 0.5ct Diamond (Baguette, 5.75×3.83mm). In other words, it's 2.86x larger.


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