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1ct Apatite (Round, 6.44×6.44mm, Green) vs 1ct Sinhalite (Emerald, 6.68×4.95mm, Brown)


Quick summary: When looked from above (face-up position), 1ct Apatite (6.44×6.44mm, round cut) appears 6% larger than 1ct Sinhalite (6.68×4.95mm, emerald cut). See below how they compare side-by-side on a ring and finger.

1ct Apatite (round cut)
vs
 1ct Sinhalite (emerald cut)
green
 
brown
6.44×6.44 mm 6.68×4.95 mm
actual size
Actual size of 1ct Apatite (round cut, 6.44×6.44mm, Green color)   Actual size of 1ct Sinhalite (emerald cut, 6.68×4.95mm, Brown color)
 
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Left finger image
Ring on left finger
Green 1ct Apatite (round cut, 6.44×6.44mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Brown 1ct Sinhalite (emerald cut, 6.68×4.95mm) 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
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Ring diameter: 16.9 mm
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Actual sizes of 1ct Apatite Round (6.44×6.44mm, Green) and 1ct Sinhalite Emerald (6.68×4.95mm, Brown) 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, Sinhalite will face-up smaller than Apatite for a given carat weight, because it has higher specific gravity (3.48 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 (Round) 1 Ct Sinhalite (Emerald)
6.44×6.44 mm vs 6.68×4.95 mm
32.57 mm²   30.75 mm²
Face-up size outline for 1ct Apatite (6.44×6.44mm, round cut)
Face-up size outline for 1ct Sinhalite (6.68×4.95mm, emerald cut)
1ct Apatite Round (6.44×6.44mm)
1ct Sinhalite Emerald (6.68×4.95mm)
Difference: 6% (1.82 mm²)
1ct Apatite Round (6.44×6.44mm) has approx. 6% more face-up area than 1ct Sinhalite Emerald (6.68×4.95mm).


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