12 Carat Aquamarine (Oval, 19.97×13.31mm, Light Blue)
Color:
Actual size is set for screen
How big is a 12 carat oval-cut Aquamarine?
It depends on the cut parameters and length-to-width ratio, but a typical size of a 12ct oval-cut Aquamarine would be around 19.97×13.31 mm (±6%). The lw ratio of this Aquamarine is 1.5. 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 |
79 % |
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Saved...
|
|
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Ring diameter:
16.9 mm
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Additional Info
Aquamarine is a blue to blue-green variety of beryl. The name comes from Latin "aqua marina" and means "water of the sea". The most valuable stones are those with the richest color saturation.
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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Aquamarine |
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Mineral Group:
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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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2.72 |
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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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19.97 mm |
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Width:
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13.31 mm |
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Est. face-up size:
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217.96 mm² |
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Volume:
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882.35 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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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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Aquamarine can be found in the following colors:
    
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Birthstone:
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Aquamarine is a birthstone for the month of March |
Popular comparisons:
- 1ct Aquamarine (Oval, Light Blue, 8.63 x 5.75) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Aquamarine (Oval, Light Blue, 8 x 6) vs. 1ct Spinel (Oval, Gray, 8 x 6)
- 1ct Aquamarine (Oval, Light Blue, 8 x 6) vs. 1ct Sapphire (Oval, Light Blue, 7.56 x 5.04)
- 2ct Aquamarine (Oval, Light Blue, 10.86 x 7.24) vs. 2.4ct Diamond (Oval, White, 10.86 x 7.24)
- 1ct Aquamarine (Oval, Light Blue, 8 x 6) vs. 1ct Aquamarine (Oval, Light Blue, 9 x 7)
- 1ct Aquamarine (Oval, Light Blue, 8.63 x 5.75) vs. 1ct Diamond (Oval, White, 8.12 x 5.41)
- 3ct Aquamarine (Oval, Light Blue, 12.44 x 8.29) vs. 3ct Diamond (Round, White, 9.37 x 9.37)
- 2ct Aquamarine (Oval, Light Blue, 10.86 x 7.24) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)