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0.25ct Topaz (Marquise, 6.38×3.19mm, Blue) vs 0.25ct Rhodolite (Marquise, 6.2×3.1mm, Purple)


Quick summary: When looked from above (face-up position), 0.25ct Topaz (6.38×3.19mm, marquise cut) appears 6% larger than 0.25ct Rhodolite (6.2×3.1mm, marquise cut). See below how they compare side-by-side on a ring and finger.

0.25ct Topaz (marquise cut)
vs
 0.25ct Rhodolite (marquise cut)
blue
 
purple
6.38×3.19 mm 6.2×3.1 mm
actual size
Actual size of 0.25ct Topaz (marquise cut, 6.38×3.19mm, Blue color)   Actual size of 0.25ct Rhodolite (marquise cut, 6.2×3.1mm, Purple color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 0.25ct Topaz (marquise cut, 6.38×3.19mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Purple 0.25ct Rhodolite (marquise cut, 6.2×3.1mm) 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
 19% vs 19%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.25ct Topaz Marquise (6.38×3.19mm, Blue) and 0.25ct Rhodolite Marquise (6.2×3.1mm, 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.


0.25 Ct Topaz (Marquise) 0.25 Ct Rhodolite (Marquise)
6.38×3.19 mm vs 6.2×3.1 mm
14.45 mm²   13.65 mm²
Face-up size outline for 0.25ct Topaz (6.38×3.19mm, marquise cut)
Face-up size outline for 0.25ct Rhodolite (6.2×3.1mm, marquise cut)
0.25ct Topaz Marquise (6.38×3.19mm)
0.25ct Rhodolite Marquise (6.2×3.1mm)
Difference: 6% (0.8 mm²)
0.25ct Topaz (Marquise, 6.38×3.19mm) has approx. 6% more face-up area than 0.25ct Rhodolite (Marquise, 6.2×3.1mm).


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