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0.75ct Topaz (Marquise, 9.2×4.6mm, Blue) vs 0.75ct Rhodolite (Marquise, 8.96×4.48mm, Purple)


Quick summary: When looked from above (face-up position), 0.75ct Topaz (9.2×4.6mm, marquise cut) appears 5% larger than 0.75ct Rhodolite (8.96×4.48mm, marquise cut). See below how they compare side-by-side on a ring and finger.

0.75ct Topaz (marquise cut)
vs
 0.75ct Rhodolite (marquise cut)
blue
 
purple
9.2×4.6 mm 8.96×4.48 mm
actual size
Actual size of 0.75ct Topaz (marquise cut, 9.2×4.6mm, Blue color)   Actual size of 0.75ct Rhodolite (marquise cut, 8.96×4.48mm, Purple color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 0.75ct Topaz (marquise cut, 9.2×4.6mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Purple 0.75ct Rhodolite (marquise cut, 8.96×4.48mm) 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
 28% vs 27%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.75ct Topaz Marquise (9.2×4.6mm, Blue) and 0.75ct Rhodolite Marquise (8.96×4.48mm, Purple) 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, Rhodolite will face-up smaller than Topaz for a given carat weight, because it has higher specific gravity (3.84 vs. 3.53 - this means it's "heavier" compared to Topaz 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.


0.75 Ct Topaz (Marquise) 0.75 Ct Rhodolite (Marquise)
9.2×4.6 mm vs 8.96×4.48 mm
30.05 mm²   28.5 mm²
Face-up size outline for 0.75ct Topaz (9.2×4.6mm, marquise cut)
Face-up size outline for 0.75ct Rhodolite (8.96×4.48mm, marquise cut)
0.75ct Topaz Marquise (9.2×4.6mm)
0.75ct Rhodolite Marquise (8.96×4.48mm)
Difference: 5% (1.55 mm²)
0.75ct Topaz (Marquise, 9.2×4.6mm) has approx. 5% more face-up area than 0.75ct Rhodolite (Marquise, 8.96×4.48mm).


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