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1.5ct Diamond (Oval, 9.29×6.19mm, White) vs 1.5ct Tanzanite (Oval, 9.23×6.15mm, Blue)


Quick summary: When looked from above (face-up position), 1.5ct Diamond (9.29×6.19mm, oval cut) appears 1% larger than 1.5ct Tanzanite (9.23×6.15mm, oval cut). See below how they compare side-by-side on a ring and finger.

1.5ct Diamond (oval cut)
vs
 1.5ct Tanzanite (oval cut)
white
 
blue
9.29×6.19 mm 9.23×6.15 mm
actual size
Actual size of 1.5ct Diamond (oval cut, 9.29×6.19mm, White color)   Actual size of 1.5ct Tanzanite (oval cut, 9.23×6.15mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1.5ct Diamond (oval cut, 9.29×6.19mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 1.5ct Tanzanite (oval cut, 9.23×6.15mm) 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 37%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1.5ct Diamond Oval (9.29×6.19mm, White) and 1.5ct Tanzanite Oval (9.23×6.15mm, 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.


1.5 Ct Diamond (Oval) 1.5 Ct Tanzanite (Oval)
9.29×6.19 mm vs 9.23×6.15 mm
47.15 mm²   46.55 mm²
Face-up size outline for 1.5ct Diamond (9.29×6.19mm, oval cut)
Face-up size outline for 1.5ct Tanzanite (9.23×6.15mm, oval cut)
1.5ct Diamond Oval (9.29×6.19mm)
1.5ct Tanzanite Oval (9.23×6.15mm)
Difference: 1% (0.6 mm²)
1.5ct Diamond (Oval, 9.29×6.19mm) has approx. 1% more face-up area than 1.5ct Tanzanite (Oval, 9.23×6.15mm).


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