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4ct Topaz (Baguette, 11.48×7.65mm, Blue) vs 0.1ct Emerald (Round, 3.16×3.16mm, Green)


Quick summary: When looked from above (face-up position), 4ct Topaz (11.48×7.65mm, baguette cut) appears 11.2 times larger than 0.1ct Emerald (3.16×3.16mm, round cut). See below how they compare side-by-side on a ring and finger.

4ct Topaz (baguette cut)
vs
 0.1ct Emerald (round cut)
blue
 
green
11.48×7.65 mm 3.16×3.16 mm
actual size
Actual size of 4ct Topaz (baguette cut, 11.48×7.65mm, Blue color)   Actual size of 0.1ct Emerald (round cut, 3.16×3.16mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 4ct Topaz (baguette cut, 11.48×7.65mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 0.1ct Emerald (round cut, 3.16×3.16mm) 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
 46% vs 19%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 4ct Topaz Baguette (11.48×7.65mm, Blue) and 0.1ct Emerald Round (3.16×3.16mm, 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, Topaz will face-up smaller than Emerald for a given carat weight, because it has higher specific gravity (3.53 vs. 2.72 - this means it's "heavier" compared to Emerald 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.


4 Ct Topaz (Baguette) 0.1 Ct Emerald (Round)
11.48×7.65 mm vs 3.16×3.16 mm
87.82 mm²   7.84 mm²
Face-up size outline for 4ct Topaz (11.48×7.65mm, baguette cut)
Face-up size outline for 0.1ct Emerald (3.16×3.16mm, round cut)
4ct Topaz Baguette (11.48×7.65mm)
0.1ct Emerald Round (3.16×3.16mm)
Difference: 1020% (79.98 mm²)
4ct Topaz (Baguette, 11.48×7.65mm) has approx. 1020% more face-up area than 0.1ct Emerald (Round, 3.16×3.16mm). In other words, it's 11.2x larger.


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