4 Carat Sapphire Pear (13×9mm, Dark Yellowish Green)
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Ring width:
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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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Pear |
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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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4 ct |
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Gram weight:
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0.8 g (0.0282 ounces) |
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Points:
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400 pts |
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Length:
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13 mm |
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Width:
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9 mm |
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Est. face-up size:
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85.41 mm² |
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Volume:
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200 mm³ |
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Length-to-width ratio:
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1.44 |
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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:
- 4ct Sapphire (Pear, Dark Yellowish Green, 13 x 9) vs. 2.01ct Diamond (Pear, White, 11.08 x 7.03)
- 4ct Sapphire (Pear, Dark Yellowish Green, 13 x 9) vs. 2.96ct Diamond (Oval, Dark Yellowish Green, 11.58 x 8.24)
- 4ct Sapphire (Pear, Dark Yellowish Green, 13 x 9) vs. 2.96ct Diamond (Oval, Yellowish Green, 11.58 x 8.24)
- 1.93ct Sapphire (Pear, Blue, 9 x 6) vs. 3ct Sapphire (Pear, Blue, 10 x 7)
- 2ct Sapphire (Pear, Blue, 10.46 x 6.3) vs. 1.6ct Diamond (Round, White, 7.6 x 7.6)
- 2ct Sapphire (Pear, Blue, 10.46 x 6.3) vs. 2ct Diamond (Pear, White, 11.4 x 6.87)
- 2.51ct Sapphire (Pear, Dark Blue, 9.72 x 9.43) vs. 2.23ct Sapphire (Oval, Dark Blue, 9.42 x 6.21)
- 1.76ct Sapphire (Pear, Dark Bluish Green, 8.49 x 5.79) vs. 0.14ct Diamond (Pear, White, 4.7 x 2.83)
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