×
carat vs. color  length*  width*
  ×

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

1.6ct Tanzanite (Pear, 10.36×6.24mm, Blue) vs 1.6ct Diamond (Pear, 10.57×6.37mm, White)


Quick summary: When looked from above (face-up position), 1.6ct Diamond (10.57×6.37mm, pear cut) appears 4% larger than 1.6ct Tanzanite (10.36×6.24mm, pear cut). See below how they compare side-by-side on a ring and finger.

1.6ct Tanzanite (pear cut)
vs
 1.6ct Diamond (pear cut)
blue
 
white
10.36×6.24 mm 10.57×6.37 mm
actual size
Actual size of 1.6ct Tanzanite (pear cut, 10.36×6.24mm, Blue color)   Actual size of 1.6ct Diamond (pear cut, 10.57×6.37mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 1.6ct Tanzanite (pear cut, 10.36×6.24mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1.6ct Diamond (pear cut, 10.57×6.37mm) 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 38%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.6ct Tanzanite Pear (10.36×6.24mm, Blue) and 1.6ct Diamond Pear (10.57×6.37mm, White) 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.


1.6 Ct Tanzanite (Pear) 1.6 Ct Diamond (Pear)
10.36×6.24 mm vs 10.57×6.37 mm
47.19 mm²   49.15 mm²
Face-up size outline for 1.6ct Diamond (10.57×6.37mm, pear cut)
Face-up size outline for 1.6ct Tanzanite (10.36×6.24mm, pear cut)
1.6ct Tanzanite Pear (10.36×6.24mm)
1.6ct Diamond Pear (10.57×6.37mm)
Difference: 4% (1.96 mm²)
1.6ct Diamond (Pear, 10.57×6.37mm) has approx. 4% more face-up area than 1.6ct Tanzanite (Pear, 10.36×6.24mm).


Popular comparisons: