13 Carat Emerald (Marquise, 26×13mm, Green)
Color:
Actual size is set for screen
How big is a 13 carat marquise-cut Emerald?
It depends on the cut parameters and length-to-width ratio, but a typical size of a 13ct marquise-cut Emerald would be around 26×13 mm (±6%). The lw ratio of this Emerald is 2. See below how big it looks on a ring and finger.
Ring:
Skin tone:
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Ring width:
3.0 mm
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Saved...
64 mm
| Your settings | |
|---|---|
Ring |
Gold |
Skin tone |
Light |
Ring diameter |
16.9 mm |
Ring width |
3.0 mm |
Finger length |
64 mm |
Finger coverage |
77 % |
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Saved...
|
|
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Ring diameter:
16.9 mm
|
Additional Info
Emerald is a green variety of Beryl mineral family. Its name comes from the French word "esmeralde", which came from the Greek word "smaragdos". The latter basically means "green gemstone". The most important factor in emerald's value is its color (vivid green is valued the most). The color in Emerald is caused by the presence or absence of chromium, vanadium, and iron.
Where to buy?
For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Gem Details
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Name:
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Emerald |
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Mineral Group:
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Beryl |
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Shape:
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Marquise |
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Chemical Formula:
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Be3Al2Si6O18 |
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Crystal Structure:
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Hexagonal |
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Hardness:
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7.5 - 8.0 |
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Specific Gravity
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2.72 |
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Carat weight:
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13 ct |
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Gram weight:
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2.6 g (0.0917 ounces) |
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Points:
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1300 pts |
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Length:
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26 mm |
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Width:
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13 mm |
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Est. face-up size:
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239.98 mm² |
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Volume:
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955.88 mm³ |
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Length-to-width ratio:
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2 |
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Refractive Index:
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1.57-1.58 |
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Luster:
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Vitreous |
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Wearability:
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Excellent |
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Care Instructions:
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No special care |
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Color:
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Emerald can be found in the following colors:
       
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Birthstone:
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Emerald is a birthstone for the month of May |
Popular comparisons:
- 0.3ct Emerald (Marquise, Dark Green, 7.54 x 3.77) vs. 0.3ct Diopside (Marquise, Green, 7.04 x 3.52)
- 0.3ct Emerald (Marquise, Dark Green, 7.54 x 3.77) vs. 0.2ct Emerald (Marquise, Dark Green, 6.58 x 3.29)
- 1.5ct Emerald (Marquise, Dark Bluish Green, 12.88 x 6.44) vs. 2ct Emerald (Marquise, Dark Green, 14.18 x 7.09)
- 1ct Emerald (Marquise, Green, 11.26 x 5.63) vs. 1ct Emerald (Pear, Green, 9.46 x 5.7)
- 1.1ct Emerald (Marquise, Green, 14 x 5) vs. 2.7ct Tanzanite (Cushion, Blue, 8.2 x 7.2)
- 0.2ct Emerald (Marquise, Green, 6.58 x 3.29) vs. 0.8ct Emerald (Emerald, Green, 6.76 x 5.01)
- 0.7ct Emerald (Marquise, Green, 10 x 5) vs. 0.06ct Diamond (Marquise, White, 4.06 x 2.03)
- 0.05ct Emerald (Marquise, Green, 4.14 x 2.07) vs. 0.06ct Diamond (Marquise, White, 4.06 x 2.03)