×
carat vs. color  length*  width*
  ×

(or examine a )
* size in mm (optional)

0.3ct Emerald (Baguette, 5.3×3.53mm, Green) vs 2.05ct Topaz (Round, 7.92×7.92mm, Blue)


Quick summary: When looked from above (face-up position), 2.05ct Topaz (7.92×7.92mm, round cut) appears 2.6 times larger than 0.3ct Emerald (5.3×3.53mm, baguette cut). See below how they compare side-by-side on a ring and finger.

0.3ct Emerald (baguette cut)
vs
 2.05ct Topaz (round cut)
green
 
blue
5.3×3.53 mm 7.92×7.92 mm
actual size
Actual size of 0.3ct Emerald (baguette cut, 5.3×3.53mm, Green color)   Actual size of 2.05ct Topaz (round cut, 7.92×7.92mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 0.3ct Emerald (baguette cut, 5.3×3.53mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 2.05ct Topaz (round cut, 7.92×7.92mm) 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
 21% vs 47%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.3ct Emerald Baguette (5.3×3.53mm, Green) and 2.05ct Topaz Round (7.92×7.92mm, 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, 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.


0.3 Ct Emerald (Baguette) 2.05 Ct Topaz (Round)
5.3×3.53 mm vs 7.92×7.92 mm
18.71 mm²   49.27 mm²
Face-up size outline for 2.05ct Topaz (7.92×7.92mm, round cut)
Face-up size outline for 0.3ct Emerald (5.3×3.53mm, baguette cut)
0.3ct Emerald Baguette (5.3×3.53mm)
2.05ct Topaz Round (7.92×7.92mm)
Difference: 163% (30.56 mm²)
2.05ct Topaz (Round, 7.92×7.92mm) has approx. 163% more face-up area than 0.3ct Emerald (Baguette, 5.3×3.53mm). In other words, it's 2.63x larger.


Popular comparisons: