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3.8ct Kunzite (Cabochon, 11.54×7.69mm, Light Purple) vs 1.37ct Diamond (Marquise, 5×15mm, White)


Quick summary: When looked from above (face-up position), 3.8ct Kunzite (11.54×7.69mm, cabochon cut) appears 37% larger than 1.37ct Diamond (5×15mm, marquise cut). See below how they compare side-by-side on a ring and finger.

3.8ct Kunzite (cabochon cut)
vs
 1.37ct Diamond (marquise cut)
light purple
 
white
11.54×7.69 mm 5×15 mm
actual size
Actual size of 3.8ct Kunzite (cabochon cut, 11.54×7.69mm, Light Purple color)   Actual size of 1.37ct Diamond (marquise cut, 5×15mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Purple 3.8ct Kunzite (cabochon cut, 11.54×7.69mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1.37ct Diamond (marquise cut, 5×15mm) 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
 46% vs 89%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 3.8ct Kunzite Cabochon (11.54×7.69mm, Light Purple) and 1.37ct Diamond Marquise (5×15mm, 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 Kunzite for a given carat weight, because it has higher specific gravity (3.52 vs. 3.18 - this means it's "heavier" compared to Kunzite 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.


3.8 Ct Kunzite (Cabochon) 1.37 Ct Diamond (Marquise)
11.54×7.69 mm vs 5×15 mm
72.77 mm²   53.25 mm²
Face-up size outline for 3.8ct Kunzite (11.54×7.69mm, cabochon cut)
Face-up size outline for 1.37ct Diamond (5×15mm, marquise cut)
3.8ct Kunzite Cabochon (11.54×7.69mm)
1.37ct Diamond Marquise (5×15mm)
Difference: 37% (19.52 mm²)
3.8ct Kunzite (Cabochon, 11.54×7.69mm) has approx. 37% more face-up area than 1.37ct Diamond (Marquise, 5×15mm).


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