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1.8ct Diaspore (Oval, 9.72×6.48mm, Light Yellowish Green) vs 2.3ct Diamond (Oval, 10.71×7.14mm, White)


Quick summary: When looked from above (face-up position), 2.3ct Diamond (10.71×7.14mm, oval cut) appears 21% larger than 1.8ct Diaspore (9.72×6.48mm, oval cut). See below how they compare side-by-side on a ring and finger.

1.8ct Diaspore (oval cut)
vs
 2.3ct Diamond (oval cut)
light yellowish green
 
white
9.72×6.48 mm 10.71×7.14 mm
actual size
Actual size of 1.8ct Diaspore (oval cut, 9.72×6.48mm, Light Yellowish Green color)   Actual size of 2.3ct Diamond (oval cut, 10.71×7.14mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Yellowish Green 1.8ct Diaspore (oval cut, 9.72×6.48mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 2.3ct Diamond (oval cut, 10.71×7.14mm) 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
 39% vs 43%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.8ct Diaspore Oval (9.72×6.48mm, Light Yellowish Green) and 2.3ct Diamond Oval (10.71×7.14mm, 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, Diamond will face-up smaller than Diaspore for a given carat weight, because it has higher specific gravity (3.52 vs. 3.4 - this means it's "heavier" compared to Diaspore 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.


1.8 Ct Diaspore (Oval) 2.3 Ct Diamond (Oval)
9.72×6.48 mm vs 10.71×7.14 mm
51.65 mm²   62.7 mm²
Face-up size outline for 2.3ct Diamond (10.71×7.14mm, oval cut)
Face-up size outline for 1.8ct Diaspore (9.72×6.48mm, oval cut)
1.8ct Diaspore Oval (9.72×6.48mm)
2.3ct Diamond Oval (10.71×7.14mm)
Difference: 21% (11.05 mm²)
2.3ct Diamond (Oval, 10.71×7.14mm) has approx. 21% more face-up area than 1.8ct Diaspore (Oval, 9.72×6.48mm).


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