Carat vs. Color  Length*  Width*

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

1 Ct Diamond (Round)

versus image

1 Ct Morganite (Round)

Light Purple
6.5×6.5 mm 6.82×6.82 mm
Actual size of 1ct Diamond
Actual size of 1ct Morganite

x Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1ct Diamond on a ring
64 mm
Right finger image
Ring on a right finger
Light Purple 1ct Morganite on a ring
Your settings
Skin tone
Ring diameter
16.9 mm
Ring width
3.0 mm
Finger length
64 mm
Ring diameter: 16.9 mm
Actual sizes of 1ct Diamond Round (6.5×6.5mm, White) and 1ct Morganite Round (6.82×6.82mm, Light Purple) 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.

Face-up Size

All things being equal, Diamond will face-up smaller than Morganite for a given carat weight, because it has higher specific gravity (3.52 vs. 2.7 - this means it's "heavier" compared to Morganite 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 Ct Diamond (Round) 1 Ct Morganite (Round)
6.5×6.5 mm → 33.18 mm² vs. 36.53 mm² ← 6.82×6.82 mm
Face-up size outline
Face-up size outline
1ct Diamond Round (6.5×6.5mm)
1ct Morganite Round (6.82×6.82mm)
Difference: 10% (3.35 mm²)
1ct Morganite Round (6.82×6.82mm) has approx. 10% more face-up area than 1ct Diamond Round (6.5×6.5mm).

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