7.5 Carat Emerald (Round, 13.31mm, Green)
Color:
Actual size is set for screen
How big is a 7.5 carat round-cut Emerald?
It depends on the cut proportions, but typically a 7.5ct round-cut Emerald would measure around 13.31 mm (±4%) in diameter. You can check the finger coverage in the simulator below.
Ring:
Skin tone:
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Ring width:
3.0 mm
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Saved...
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 |
Finger coverage |
79 % |
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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 Group:
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Beryl |
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Shape:
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Round |
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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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7.5 ct |
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Gram weight:
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1.5 g (0.0529 ounces) |
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Points:
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750 pts |
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Length:
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13.31 mm |
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Width:
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13.31 mm |
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Average diameter:
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13.31 mm |
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Est. face-up size:
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139.14 mm² |
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Volume:
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551.47 mm³ |
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Length-to-width ratio:
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1 |
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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:
- 0.05ct Emerald (Round, Green, 2.51 x 2.51) vs. 0.4ct Emerald (Round, Green, 5.02 x 5.02)
- 2ct Emerald (Round, Green, 8.59 x 8.59) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 0.2ct Emerald (Round, Dark Bluish Green, 3.99 x 3.99) vs. 0.08ct Diamond (Round, White, 2.8 x 2.8)
- 0.5ct Emerald (Round, Dark Green, 5.41 x 5.41) vs. 0.6ct Emerald (Round, Dark Green, 5.75 x 5.75)
- 0.9ct Emerald (Round, Green, 6.58 x 6.58) vs. 1.13ct Emerald (Cushion, Green, 6.64 x 6.64)
- 1ct Emerald (Round, Green, 6.82 x 6.82) vs. 2ct Kunzite (Round, Light Purple, 8.13 x 8.13)
- 0.8ct Emerald (Round, Dark Green, 6 x 6) vs. 0.5ct Emerald (Round, Dark Green, 5 x 5)
- 1ct Emerald (Round, Green, 6.82 x 6.82) vs. 2.6ct Diamond (Round, White, 8.94 x 8.94)