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1 Carat Emerald Round (6.37×6.37 mm)

light yellowish green
actual size
1ct Emerald image - Round, Light Yellowish Green
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Ring width: 3.0 mm
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Light Yellowish Green 1ct Emerald on a ring
64 mm
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Ring
Gold
Skin tone
Light
Ring diameter
16.9 mm
Ring width
3.0 mm
Finger length
64 mm
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Ring diameter: 16.9 mm
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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?
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.

Gem Details

Name:
Emerald
Mineral Class:
Beryl
Shape:
Round
Chemical Formula:
Be3Al2Si6O18
Crystal Structure:
Hexagonal
Hardness:
7.5 - 8.0
Specific Gravity
2.7
Carat weight:
1 ct
Gram weight:
0.2 g (0.0071 ounces)
Points:
100 pts
Length:
6.37 mm
Width:
6.37 mm
Average diameter:
6.37 mm
Est. face-up size:
31.87 mm²
Volume:
74.07 mm³
Length-to-width ratio:
1
Refractive Index:
1.57-1.58
Cleavage:
3,1 - basal
Luster:
Vitreous
Birefringence:
0.006
Wearability:
Excellent
Care Instructions:
No special care
Color:
Light Yellowish Green Yellowish Green Dark Yellowish Green Light Green Green Dark Green Light Bluish Green Bluish Green Dark Bluish Green
Birthstone:
Emerald is a birthstone for the month of May

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