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2ct Kyanite (Emerald, 8.28×6.13mm, Blue) vs 2ct Topaz (Emerald, 8.38×6.21mm, Blue)


Quick summary: When looked from above (face-up position), 2ct Topaz (8.38×6.21mm, emerald cut) appears 3% larger than 2ct Kyanite (8.28×6.13mm, emerald cut). See below how they compare side-by-side on a ring and finger.

2ct Kyanite (emerald cut)
vs
2ct Topaz (emerald cut)
blue
 
blue
8.28×6.13 mm 8.38×6.21 mm
actual size
Actual size of 2ct Kyanite (emerald cut, 8.28×6.13mm, Blue color)   Actual size of 2ct Topaz (emerald cut, 8.38×6.21mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 2ct Kyanite (emerald cut, 8.28×6.13mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 2ct Topaz (emerald cut, 8.38×6.21mm) 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
37% vs 37%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 2ct Kyanite Emerald (8.28×6.13mm, Blue) and 2ct Topaz Emerald (8.38×6.21mm, Blue) 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, Kyanite will face-up smaller than Topaz for a given carat weight, because it has higher specific gravity (3.68 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.


2 Ct Kyanite (Emerald) 2 Ct Topaz (Emerald)
8.28×6.13 mm vs 8.38×6.21 mm
47.2 mm²   48.4 mm²
Face-up size outline for 2ct Topaz (8.38×6.21mm, emerald cut)
Face-up size outline for 2ct Kyanite (8.28×6.13mm, emerald cut)
2ct Kyanite Emerald (8.28×6.13mm)
2ct Topaz Emerald (8.38×6.21mm)
Difference: 3% (1.2 mm²)
2ct Topaz (Emerald, 8.38×6.21mm) has approx. 3% more face-up area than 2ct Kyanite (Emerald, 8.28×6.13mm).


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