12 Carat Emerald Oval (19.74×13.16mm, Green)
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64 mm
| Your settings | |
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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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Saved...
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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?
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 Class:
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Beryl |
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Shape:
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Oval |
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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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2.7 |
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Carat weight:
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12 ct |
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Gram weight:
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2.4 g (0.0847 ounces) |
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Points:
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1200 pts |
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Length:
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19.74 mm |
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Width:
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13.16 mm |
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Est. face-up size:
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213.02 mm² |
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Volume:
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888.89 mm³ |
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Length-to-width ratio:
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1.5 |
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Refractive Index:
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1.57-1.58 |
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Cleavage:
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3,1 - basal |
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Luster:
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Vitreous |
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Birefringence:
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0.006 |
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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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Birthstone:
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Emerald is a birthstone for the month of May |
Popular comparisons:
- 12ct Emerald (Oval, Green, 19.74 x 13.16) vs. 5ct Sapphire (Oval, Blue, 12.93 x 8.62)
- 12ct Emerald (Oval, Green, 19.74 x 13.16) vs. 12ct Sapphire (Oval, Blue, 17.31 x 11.54)
- 12ct Emerald (Oval, Green, 19.74 x 13.16) vs. 20ct Emerald (Emerald, Green, 19.76 x 14.64)
- 12ct Emerald (Oval, Green, 19.74 x 13.16) vs. 2ct Ruby (Oval, Red, 9.53 x 6.35)
- 2.4ct Emerald (Oval, Green, 11.55 x 7.7) vs. 2.7ct Tanzanite (Cushion, Blue, 8.2 x 7.2)
- 6ct Emerald (Oval, Green, 15.68 x 10.45) vs. 6ct Ruby (Oval, Red, 13.74 x 9.16)
- 10ct Emerald (Oval, Green, 18.57 x 12.38) vs. 6ct Spinel (Oval, Red, 14.24 x 9.49)
- 20ct Emerald (Oval, Green, 23.4 x 15.6) vs. 40ct Emerald (Oval, Green, 29.49 x 19.66)
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