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2ct Topaz (Cushion, 7.34×7.34mm, Light Bluish Green) vs 1.08ct Sapphire (Emerald, 6.55×4.85mm, Dark Bluish Green)


Quick summary: When looked from above (face-up position), 2ct Topaz (7.34×7.34mm, cushion cut) appears 64% larger than 1.08ct Sapphire (6.55×4.85mm, emerald cut). See below how they compare side-by-side on a ring and finger.

2ct Topaz (cushion cut)
vs
 1.08ct Sapphire (emerald cut)
light bluish green
 
dark bluish green
7.34×7.34 mm 6.55×4.85 mm
actual size
Actual size of 2ct Topaz (cushion cut, 7.34×7.34mm, Light Bluish Green color)   Actual size of 1.08ct Sapphire (emerald cut, 6.55×4.85mm, Dark Bluish Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Bluish Green 2ct Topaz (cushion cut, 7.34×7.34mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Dark Bluish Green 1.08ct Sapphire (emerald cut, 6.55×4.85mm) 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
 44% vs 29%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2ct Topaz Cushion (7.34×7.34mm, Light Bluish Green) and 1.08ct Sapphire Emerald (6.55×4.85mm, Dark Bluish 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, Sapphire will face-up smaller than Topaz for a given carat weight, because it has higher specific gravity (4 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 Topaz (Cushion) 1.08 Ct Sapphire (Emerald)
7.34×7.34 mm vs 6.55×4.85 mm
48.49 mm²   29.54 mm²
Face-up size outline for 2ct Topaz (7.34×7.34mm, cushion cut)
Face-up size outline for 1.08ct Sapphire (6.55×4.85mm, emerald cut)
2ct Topaz Cushion (7.34×7.34mm)
1.08ct Sapphire Emerald (6.55×4.85mm)
Difference: 64% (18.95 mm²)
2ct Topaz (Cushion, 7.34×7.34mm) has approx. 64% more face-up area than 1.08ct Sapphire (Emerald, 6.55×4.85mm).


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