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2.23ct Tanzanite (Cabochon, 9.54×6.36mm, Blue) vs 2.23ct Diamond (Cabochon, 9.33×6.22mm, White)


Quick summary: When looked from above (face-up position), 2.23ct Tanzanite (9.54×6.36mm, cabochon cut) appears 5% larger than 2.23ct Diamond (9.33×6.22mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

2.23ct Tanzanite (cabochon cut)
vs
 2.23ct Diamond (cabochon cut)
blue
 
white
9.54×6.36 mm 9.33×6.22 mm
actual size
Actual size of 2.23ct Tanzanite (cabochon cut, 9.54×6.36mm, Blue color)   Actual size of 2.23ct Diamond (cabochon cut, 9.33×6.22mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 2.23ct Tanzanite (cabochon cut, 9.54×6.36mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 2.23ct Diamond (cabochon cut, 9.33×6.22mm) 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
 38% vs 37%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2.23ct Tanzanite Cabochon (9.54×6.36mm, Blue) and 2.23ct Diamond Cabochon (9.33×6.22mm, 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.


2.23 Ct Tanzanite (Cabochon) 2.23 Ct Diamond (Cabochon)
9.54×6.36 mm vs 9.33×6.22 mm
49.75 mm²   47.59 mm²
Face-up size outline for 2.23ct Tanzanite (9.54×6.36mm, cabochon cut)
Face-up size outline for 2.23ct Diamond (9.33×6.22mm, cabochon cut)
2.23ct Tanzanite Cabochon (9.54×6.36mm)
2.23ct Diamond Cabochon (9.33×6.22mm)
Difference: 5% (2.16 mm²)
2.23ct Tanzanite (Cabochon, 9.54×6.36mm) has approx. 5% more face-up area than 2.23ct Diamond (Cabochon, 9.33×6.22mm).


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