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1.9ct Diamond (Round, 8.05×8.05mm, White) vs 2.2ct Spinel (Round, 8.05×8.05mm, White)


Quick summary: Compared gemstones have equal face-up area.

1.9ct Diamond (round cut)
vs
 2.2ct Spinel (round cut)
white
 
white
8.05×8.05 mm 8.05×8.05 mm
actual size
Actual size of 1.9ct Diamond (round cut, 8.05×8.05mm, White color)   Actual size of 2.2ct Spinel (round cut, 8.05×8.05mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1.9ct Diamond (round cut, 8.05×8.05mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 2.2ct Spinel (round cut, 8.05×8.05mm) 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
 48% vs 48%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.9ct Diamond Round (8.05×8.05mm, White) and 2.2ct Spinel Round (8.05×8.05mm, 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.


1.9 Ct Diamond (Round) 2.2 Ct Spinel (Round)
8.05×8.05 mm vs 8.05×8.05 mm
50.9 mm²   50.9 mm²
Face-up size outline for true size of 8.05×8.05mm
1.9ct Diamond Round (8.05×8.05mm)
2.2ct Spinel Round (8.05×8.05mm)
Difference: 0% (0 mm²)
1.9ct Diamond (Round, 8.05×8.05mm) and 2.2ct Spinel (Round, 8.05×8.05mm) have the same face-up area.


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