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1ct Apatite (Pear, 8×5mm, Green) vs 1ct Diaspore (Pear, 8×6mm, Light Yellowish Green)


Quick summary: When looked from above (face-up position), 1ct Diaspore (8×6mm, pear cut) appears 20% larger than 1ct Apatite (8×5mm, pear cut). See below how they compare side-by-side on a ring and finger.

1ct Apatite (pear cut)
vs
1ct Diaspore (pear cut)
green
 
light yellowish green
8×5 mm 8×6 mm
actual size
Actual size of 1ct Apatite (pear cut, 8×5mm, Green color)   Actual size of 1ct Diaspore (pear cut, 8×6mm, Light Yellowish Green color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 1ct Apatite (pear cut, 8×5mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Yellowish Green 1ct Diaspore (pear cut, 8×6mm) 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
30% vs 36%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1ct Apatite Pear (8×5mm, Green) and 1ct Diaspore Pear (8×6mm, Light Yellowish Green) 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, Diaspore will face-up smaller than Apatite for a given carat weight, because it has higher specific gravity (3.4 vs. 3.2 - this means it's "heavier" compared to Apatite 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 Ct Apatite (Pear) 1 Ct Diaspore (Pear)
8×5 mm vs 8×6 mm
29.2 mm²   35.04 mm²
Face-up size outline for 1ct Diaspore (8×6mm, pear cut)
Face-up size outline for 1ct Apatite (8×5mm, pear cut)
1ct Apatite Pear (8×5mm)
1ct Diaspore Pear (8×6mm)
Difference: 20% (5.84 mm²)
1ct Diaspore (Pear, 8×6mm) has approx. 20% more face-up area than 1ct Apatite (Pear, 8×5mm).


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