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0.06ct Diamond (Round, 2.54×2.54mm, White) vs 1.5ct Tanzanite (Cushion, 6.82×6.82mm, Blue)


Quick summary: When looked from above (face-up position), 1.5ct Tanzanite (6.82×6.82mm, cushion cut) appears 8.3 times larger than 0.06ct Diamond (2.54×2.54mm, round cut). See below how they compare side-by-side on a ring and finger.

0.06ct Diamond (round cut)
vs
 1.5ct Tanzanite (cushion cut)
white
 
blue
2.54×2.54 mm 6.82×6.82 mm
actual size
Actual size of 0.06ct Diamond (round cut, 2.54×2.54mm, White color)   Actual size of 1.5ct Tanzanite (cushion cut, 6.82×6.82mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 0.06ct Diamond (round cut, 2.54×2.54mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 1.5ct Tanzanite (cushion cut, 6.82×6.82mm) 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
 16% vs 41%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.06ct Diamond Round (2.54×2.54mm, White) and 1.5ct Tanzanite Cushion (6.82×6.82mm, 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, Diamond will face-up smaller than Tanzanite for a given carat weight, because it has higher specific gravity (3.52 vs. 3.35 - this means it's "heavier" compared to Tanzanite 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.


0.06 Ct Diamond (Round) 1.5 Ct Tanzanite (Cushion)
2.54×2.54 mm vs 6.82×6.82 mm
5.07 mm²   41.86 mm²
Face-up size outline for 1.5ct Tanzanite (6.82×6.82mm, cushion cut)
Face-up size outline for 0.06ct Diamond (2.54×2.54mm, round cut)
0.06ct Diamond Round (2.54×2.54mm)
1.5ct Tanzanite Cushion (6.82×6.82mm)
Difference: 726% (36.79 mm²)
1.5ct Tanzanite (Cushion, 6.82×6.82mm) has approx. 726% more face-up area than 0.06ct Diamond (Round, 2.54×2.54mm). In other words, it's 8.26x larger.


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