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3.5 Carat Sapphire Cushion (8.49×8.49 mm)

blue
actual size
3.5ct Sapphire image - Cushion, Blue
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Ring:
Skin tone:
Ring width: 3.0 mm
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Finger image
Ring on finger
Blue 3.5ct Sapphire on a ring
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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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?
JamesAllen → high-quality blue Sapphires, high-end jewelry and competitive prices. Highly recommended.
Amazon → usually offers a good selection from many different vendors. Worth a check.

Gem Details

Name:
Sapphire
Mineral Class:
Corundum
Shape:
Cushion
Chemical Formula:
Al2O3
Crystal Structure:
Hexagonal
Hardness:
9
Specific Gravity
4
Carat weight:
3.5 ct
Gram weight:
0.7 g (0.0247 ounces)
Points:
350 pts
Length:
8.49 mm
Width:
8.49 mm
Est. face-up size:
64.87 mm²
Volume:
175 mm³
Length-to-width ratio:
1
Refractive Index:
1.76 - 1.77
Cleavage:
None
Luster:
Vitreous to adamantine
Birefringence:
0.0008
Wearability:
Excellent
Care Instructions:
No special or unusual care
Color:
White Light Orange Orange Light Brown Brown Dark Brown Light Yellow Yellow Light Yellowish Green Yellowish Green Dark Yellowish Green Light Green Green Dark Green Light Bluish Green Bluish Green Dark Bluish Green Light Blue Blue Dark Blue Light Violet Violet Dark Violet Light Purple Purple Dark Purple Light Gray Gray Black
Birthstone:
Sapphire is a birthstone for the month of September

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