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3 Carat Spinel Marquise (14.74×7.37mm, Red)

Color:
red
actual size
3ct Spinel displayed at actual size of 14.74×7.37mm, (Marquise cut, Red
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Actual size is set for screen
Ring:
Skin tone:
Ring width: 3.0 mm
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Finger image
Ring on finger
Red 3ct Spinel (marquise cut) shown in real-world size of 14.74×7.37mm on a ring and finger
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
 44 %
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Ring diameter: 16.9 mm
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Additional Info

Spinel is a rare gemstone that occurs in practically all colors. Because of similar properties, red and blue Spinels have often been mistaken for Rubies and Sapphires. For example, the Black Prince's Ruby is actually a Spinel.

Where to buy?
For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile

Gem Details

Name:
Spinel
Shape:
Marquise
Chemical Formula:
MgAl2O4
Crystal Structure:
Isometric
Hardness:
7.5-8
Specific Gravity
3.6
Carat weight:
3 ct
Gram weight:
0.6 g (0.0212 ounces)
Points:
300 pts
Length:
14.74 mm
Width:
7.37 mm
Est. face-up size:
77.13 mm²
Volume:
166.67 mm³
Length-to-width ratio:
2
Refractive Index:
1.712 - 1.736
Luster:
Vitreous
Wearability:
Excellent
Care Instructions:
No special or unusual care
Color:
Spinel can be found in the following colors:
Color WhiteColor Light RedColor RedColor Dark RedColor Orangey RedColor Light OrangeColor OrangeColor Light BrownColor BrownColor Dark BrownColor Light YellowColor YellowColor Light Yellowish GreenColor Yellowish GreenColor Dark Yellowish GreenColor Light Green Color GreenColor Dark GreenColor Light Bluish GreenColor Bluish GreenColor Dark Bluish GreenColor Light BlueColor BlueColor Dark BlueColor Light VioletColor VioletColor Dark VioletColor Light PurpleColor PurpleColor Dark PurpleColor Light GrayColor GrayColor Black
Birthstone:
Spinel is not an official birthstone of any month

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