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15ct Aquamarine (Baguette, 19.44×12.96mm, Light Blue) vs 15ct Diamond (Baguette, 17.84×11.89mm, White)


Quick summary: When looked from above (face-up position), 15ct Aquamarine (19.44×12.96mm, baguette cut) appears 19% larger than 15ct Diamond (17.84×11.89mm, baguette cut). See below how they compare side-by-side on a ring and finger.

15ct Aquamarine (baguette cut)
vs
15ct Diamond (baguette cut)
light blue
 
white
19.44×12.96 mm 17.84×11.89 mm
actual size
Actual size of 15ct Aquamarine (baguette cut, 19.44×12.96mm, Light Blue color)   Actual size of 15ct Diamond (baguette cut, 17.84×11.89mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Blue 15ct Aquamarine (baguette cut, 19.44×12.96mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 15ct Diamond (baguette cut, 17.84×11.89mm) 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
77% vs 71%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 15ct Aquamarine Baguette (19.44×12.96mm, Light Blue) and 15ct Diamond Baguette (17.84×11.89mm, 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 Aquamarine for a given carat weight, because it has higher specific gravity (3.52 vs. 2.72 - this means it's "heavier" compared to Aquamarine 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.


15 Ct Aquamarine (Baguette) 15 Ct Diamond (Baguette)
19.44×12.96 mm vs 17.84×11.89 mm
251.94 mm²   212.12 mm²
Face-up size outline for 15ct Aquamarine (19.44×12.96mm, baguette cut)
Face-up size outline for 15ct Diamond (17.84×11.89mm, baguette cut)
15ct Aquamarine Baguette (19.44×12.96mm)
15ct Diamond Baguette (17.84×11.89mm)
Difference: 19% (39.82 mm²)
15ct Aquamarine (Baguette, 19.44×12.96mm) has approx. 19% more face-up area than 15ct Diamond (Baguette, 17.84×11.89mm).


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