5.5 Carat Sapphire Cushion (9.87×9.87mm, Blue)
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64 mm
| Your settings | |
|---|---|
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
Sapphire got its name from the Greek word "sappheiros", which means "blue stone". Today, most people still associate Sapphires with the color blue, however, any gemstone quality Corundum that is not red (Ruby) is actually called Sapphire.
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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Sapphire |
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Mineral Class:
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Corundum |
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Shape:
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Cushion |
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Chemical Formula:
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Al2O3 |
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Crystal Structure:
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Hexagonal |
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Hardness:
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9 |
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Specific Gravity
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4 |
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Carat weight:
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5.5 ct |
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Gram weight:
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1.1 g (0.0388 ounces) |
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Points:
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550 pts |
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Length:
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9.87 mm |
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Width:
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9.87 mm |
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Est. face-up size:
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87.68 mm² |
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Volume:
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275 mm³ |
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Length-to-width ratio:
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1 |
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Refractive Index:
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1.76 - 1.77 |
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Cleavage:
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None |
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Luster:
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Vitreous to adamantine |
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Birefringence:
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0.0008 |
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Wearability:
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Excellent |
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Care Instructions:
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No special or unusual care |
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Color:
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Birthstone:
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Sapphire is a birthstone for the month of September |
Popular comparisons:
- 12ct Sapphire (Cushion, Blue, 12.8 x 12.8) vs. 2ct Ruby (Cushion, Red, 7.04 x 7.04)
- 3.59ct Sapphire (Cushion, Blue, 8.2 x 8.3) vs. 6.22ct Emerald (Emerald, Green, 12.4 x 10.9)
- 2ct Sapphire (Cushion, Blue, 7.04 x 7.04) vs. 2ct Diamond (Cushion, White, 7.34 x 7.34)
- 4.13ct Sapphire (Cushion, Blue, 9.91 x 7.48) vs. 4.57ct Sapphire (Oval, Blue, 11.31 x 8.15)
- 0.2ct Sapphire (Cushion, Blue, 3.27 x 3.27) vs. 1ct Tourmaline (Pear, Violet, 9.05 x 5.45)
- 0.77ct Sapphire (Cushion, Blue, 5.13 x 5.13) vs. 1.03ct Sapphire (Cushion, Blue, 5.41 x 5.37)
- 3.5ct Sapphire (Cushion, Blue, 9.5 x 8.5) vs. 3.5ct Sapphire (Cushion, Blue, 10 x 8)
- 2ct Sapphire (Cushion, Dark Bluish Green, 7.04 x 7.04) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
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