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1.75ct Spinel (Emerald, 7.97×5.9mm, Light Brown) vs 1.5ct Diamond (Emerald, 7.65×5.67mm, White)


Quick summary: When looked from above (face-up position), 1.75ct Spinel (7.97×5.9mm, emerald cut) appears 8% larger than 1.5ct Diamond (7.65×5.67mm, emerald cut). See below how they compare side-by-side on a ring and finger.

1.75ct Spinel (emerald cut)
vs
 1.5ct Diamond (emerald cut)
light brown
 
white
7.97×5.9 mm 7.65×5.67 mm
actual size
Actual size of 1.75ct Spinel (emerald cut, 7.97×5.9mm, Light Brown color)   Actual size of 1.5ct Diamond (emerald cut, 7.65×5.67mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Brown 1.75ct Spinel (emerald cut, 7.97×5.9mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1.5ct Diamond (emerald cut, 7.65×5.67mm) 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
 35% vs 34%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.75ct Spinel Emerald (7.97×5.9mm, Light Brown) and 1.5ct Diamond Emerald (7.65×5.67mm, 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, Spinel will face-up slightly smaller than Diamond for a given carat weight, because it has higher specific gravity (3.6 vs. 3.52 - this means it's "slightly 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.


1.75 Ct Spinel (Emerald) 1.5 Ct Diamond (Emerald)
7.97×5.9 mm vs 7.65×5.67 mm
43.73 mm²   40.34 mm²
Face-up size outline for 1.75ct Spinel (7.97×5.9mm, emerald cut)
Face-up size outline for 1.5ct Diamond (7.65×5.67mm, emerald cut)
1.75ct Spinel Emerald (7.97×5.9mm)
1.5ct Diamond Emerald (7.65×5.67mm)
Difference: 8% (3.39 mm²)
1.75ct Spinel (Emerald, 7.97×5.9mm) has approx. 8% more face-up area than 1.5ct Diamond (Emerald, 7.65×5.67mm).


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