Carat vs. Color  Length*  Width*

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

1 Ct Andesine (Emerald)

versus image

1 Ct Quartz (Pear)

Dark Red
7.3×5.41 mm 6.86×6.86 mm
Actual size of 1ct Andesine
Actual size of 1ct Quartz

x Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Dark Red 1ct Andesine on a ring
64 mm
Right finger image
Ring on a right finger
Orange 1ct Quartz 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 Andesine Emerald (7.3×5.41mm, Dark Red) and 1ct Quartz Pear (6.86×6.86mm, Orange) 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, Andesine will face-up slightly smaller than Quartz for a given carat weight, because it has higher specific gravity (2.67 vs. 2.65 - this means it's "slightlyheavier" compared to Quartz 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 Andesine (Emerald) 1 Ct Quartz (Pear)
7.3×5.41 mm → 36.73 mm² vs. 34.35 mm² ← 6.86×6.86 mm
Face-up size outline
Face-up size outline
1ct Andesine Emerald (7.3×5.41mm)
1ct Quartz Pear (6.86×6.86mm)
Difference: 7% (2.38 mm²)
1ct Andesine Emerald (7.3×5.41mm) has approx. 7% more face-up area than 1ct Quartz Pear (6.86×6.86mm).

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