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1 Carat Kyanite Oval (7.77×5.18 mm)

blue
actual size
1ct Kyanite image - Oval, Blue
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Ring width: 3.0 mm
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Blue 1ct Kyanite on a ring
64 mm
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Ring
Gold
Skin tone
Light
Ring diameter
16.9 mm
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3.0 mm
Finger length
64 mm
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Ring diameter: 16.9 mm
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Additional Info

Kyanite got its name from the Greek word "kyanos", which simply means "blue". Gems with intense sapphire blue color are the most valuable. One peculiarity about Kyanite is that depending on crystallographic direction, it has two different hardnesses (7 and 4.5).

Where to buy?
For Kyanite check what Amazon has to offer. You'll usually find quite a selection from many different vendors. Worth a check. For other high quality gemstones (Rubies, Saphhires, Emeralds) and especially Diamonds, I highly recommend JamesAllen.

Gem Details

Name:
Kyanite
Mineral Class:
Kyanite
Shape:
Oval
Chemical Formula:
Al2SiO5
Crystal Structure:
Triclinic
Hardness:
4.5-7
Specific Gravity
3.68
Carat weight:
1 ct
Gram weight:
0.2 g (0.0071 ounces)
Points:
100 pts
Length:
7.77 mm
Width:
5.18 mm
Est. face-up size:
33 mm²
Volume:
54.35 mm³
Length-to-width ratio:
1.5
Refractive Index:
1.710 - 1.735
Cleavage:
Perfect
Luster:
Vitreous,Pearly
Birefringence:
0.012 - 0.033
Wearability:
Very good
Care Instructions:
Should be treated gently
Color:
Light Bluish Green Bluish Green Dark Bluish Green Light Blue Blue Dark Blue
Birthstone:
Kyanite is not an official birthstone for any month

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