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0.75ct Topaz (Asscher, 5.05×5.05mm, Blue) vs 0.75ct Rhodolite (Asscher, 4.91×4.91mm, Purple)


Quick summary: When looked from above (face-up position), 0.75ct Topaz (5.05×5.05mm, asscher cut) appears 6% larger than 0.75ct Rhodolite (4.91×4.91mm, asscher cut). See below how they compare side-by-side on a ring and finger.

0.75ct Topaz (asscher cut)
vs
0.75ct Rhodolite (asscher cut)
blue
 
purple
5.05×5.05 mm 4.91×4.91 mm
actual size
Actual size of 0.75ct Topaz (asscher cut, 5.05×5.05mm, Blue color)   Actual size of 0.75ct Rhodolite (asscher cut, 4.91×4.91mm, 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 (asscher cut, 5.05×5.05mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Purple 0.75ct Rhodolite (asscher cut, 4.91×4.91mm) 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
30% vs 30%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.75ct Topaz Asscher (5.05×5.05mm, Blue) and 0.75ct Rhodolite Asscher (4.91×4.91mm, 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 (Asscher) 0.75 Ct Rhodolite (Asscher)
5.05×5.05 mm vs 4.91×4.91 mm
23.46 mm²   22.18 mm²
Face-up size outline for 0.75ct Topaz (5.05×5.05mm, asscher cut)
Face-up size outline for 0.75ct Rhodolite (4.91×4.91mm, asscher cut)
0.75ct Topaz Asscher (5.05×5.05mm)
0.75ct Rhodolite Asscher (4.91×4.91mm)
Difference: 6% (1.28 mm²)
0.75ct Topaz (Asscher, 5.05×5.05mm) has approx. 6% more face-up area than 0.75ct Rhodolite (Asscher, 4.91×4.91mm).


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