×
carat vs. color  length*  width*
  ×

(or examine a )
* size in mm (optional)

4.5ct Hiddenite (Round, 10.65×10.65mm, Light Green ) vs 4.5ct Apatite (Round, 10.63×10.63mm, Green)


Quick summary: When looked from above (face-up position), 4.5ct Hiddenite (10.65×10.65mm, round cut) appears 0.4% larger than 4.5ct Apatite (10.63×10.63mm, round cut). See below how they compare side-by-side on a ring and finger.

4.5ct Hiddenite (round cut)
vs
 4.5ct Apatite (round cut)
light green
 
green
10.65×10.65 mm 10.63×10.63 mm
actual size
Actual size of 4.5ct Hiddenite (round cut, 10.65×10.65mm, Light Green color)   Actual size of 4.5ct Apatite (round cut, 10.63×10.63mm, Green color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Green 4.5ct Hiddenite (round cut, 10.65×10.65mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 4.5ct Apatite (round cut, 10.63×10.63mm) 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
 64% vs 63%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 4.5ct Hiddenite Round (10.65×10.65mm, Light Green ) and 4.5ct Apatite Round (10.63×10.63mm, 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, Apatite will face-up slightly smaller than Hiddenite for a given carat weight, because it has higher specific gravity (3.2 vs. 3.18 - this means it's "slightly heavier" compared to Hiddenite 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.


4.5 Ct Hiddenite (Round) 4.5 Ct Apatite (Round)
10.65×10.65 mm vs 10.63×10.63 mm
89.08 mm²   88.75 mm²
Face-up size outline for 4.5ct Hiddenite (10.65×10.65mm, round cut)
Face-up size outline for 4.5ct Apatite (10.63×10.63mm, round cut)
4.5ct Hiddenite Round (10.65×10.65mm)
4.5ct Apatite Round (10.63×10.63mm)
Difference: 0.4% (0.33 mm²)
4.5ct Hiddenite (Round, 10.65×10.65mm) has approx. 0.4% more face-up area than 4.5ct Apatite (Round, 10.63×10.63mm).


Popular comparisons: