carat vs. color  length*  width*

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

2.29 Ct Quartz (Round)


1 Ct Emerald (Emerald)

light gray
9.04×9.04 mm 7.28×5.39 mm
actual size
Actual size of 2.29ct Quartz   Actual size of 1ct Emerald
Actual size is set for screen Change
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Gray 2.29ct Quartz on a ring
64 mm
Right finger image
Ring on a right finger
Green 1ct Emerald 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 2.29ct Quartz Round (9.04×9.04mm, Light Gray) and 1ct Emerald Emerald (7.28×5.39mm, Green) 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?

JamesAllen → high-quality Emeralds, high-end jewelry and competitive prices. Highly recommended.
Amazon → usually offers a good selection from many different vendors. Worth a check.

Face-up Size

All things being equal, Emerald will face-up slightly smaller than Quartz for a given carat weight, because it has higher specific gravity (2.7 vs. 2.65 - this means it's "slightly heavier" 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.

2.29 Ct Quartz (Round) 1 Ct Emerald (Emerald)
9.04×9.04 mm vs 7.28×5.39 mm
64.18 mm²   36.49 mm²
Face-up size outline
Face-up size outline
2.29ct Quartz Round (9.04×9.04mm)
1ct Emerald Emerald (7.28×5.39mm)
Difference: 76% (27.69 mm²)
2.29ct Quartz Round (9.04×9.04mm) has approx. 76% more face-up area than 1ct Emerald Emerald (7.28×5.39mm).

Popular comparisons:

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Actual size is currently adjusted to screen.

If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.