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40ct Titanite (Radiant, 19.64×19.64mm, Yellowish Green) vs 40ct Apatite (Radiant, 20.3×20.3mm, Green)


Quick summary: When looked from above (face-up position), 40ct Apatite (20.3×20.3mm, radiant cut) appears 7% larger than 40ct Titanite (19.64×19.64mm, radiant cut). See below how they compare side-by-side on a ring and finger.

40ct Titanite (radiant cut)
vs
40ct Apatite (radiant cut)
yellowish green
 
green
19.64×19.64 mm 20.3×20.3 mm
actual size
Actual size of 40ct Titanite (radiant cut, 19.64×19.64mm, Yellowish Green color)   Actual size of 40ct Apatite (radiant cut, 20.3×20.3mm, Green color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Yellowish Green 40ct Titanite (radiant cut, 19.64×19.64mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 40ct Apatite (radiant cut, 20.3×20.3mm) 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
117% vs 121%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 40ct Titanite Radiant (19.64×19.64mm, Yellowish Green) and 40ct Apatite Radiant (20.3×20.3mm, 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, Titanite will face-up smaller than Apatite for a given carat weight, because it has higher specific gravity (3.53 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.


40 Ct Titanite (Radiant) 40 Ct Apatite (Radiant)
19.64×19.64 mm vs 20.3×20.3 mm
366.44 mm²   391.49 mm²
Face-up size outline for 40ct Apatite (20.3×20.3mm, radiant cut)
Face-up size outline for 40ct Titanite (19.64×19.64mm, radiant cut)
40ct Titanite Radiant (19.64×19.64mm)
40ct Apatite Radiant (20.3×20.3mm)
Difference: 7% (25.05 mm²)
40ct Apatite (Radiant, 20.3×20.3mm) has approx. 7% more face-up area than 40ct Titanite (Radiant, 19.64×19.64mm).


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