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36 Carat Benitoite (Round, 20.35mm, Blue)

Color:
blue
actual size
36ct Benitoite displayed at actual size of 20.35×20.35mm, (Round cut, Blue
Actual size is set for screen


How big is a 36 carat round-cut Benitoite?

It depends on the cut proportions, but typically a 36ct round-cut Benitoite would measure around 20.35 mm (±4%) in diameter. You can check the finger coverage in the simulator below. 
Ring:
Skin tone:
Ring width: 3.0 mm
Saved...
Finger image
Ring on finger
Blue 36ct Benitoite (round cut) shown in real-world size of 20.35×20.35mm 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
121 %
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2

Additional Info

Benitoite is a very rare blue gem first discovered in San Benito, California (hence the name). Benitoite is California state’s official gem.

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

Gem Details

Name:
Benitoite
Shape:
Round
Chemical Formula:
BaTiSi3O9
Crystal Structure:
Hexagonal
Hardness:
6 - 6.5
Specific Gravity
3.65
Carat weight:
36 ct
Gram weight:
7.2 g (0.254 ounces)
Points:
3600 pts
Length:
20.35 mm
Width:
20.35 mm
Average diameter:
20.35 mm
Est. face-up size:
325.25 mm²
Volume:
1972.6 mm³
Length-to-width ratio:
1
Refractive Index:
1.75-1.80
Luster:
Vitreous
Wearability:
Care Instructions:
Color:
Benitoite can be found in the following colors:
Color WhiteColor Light BlueColor BlueColor Dark Blue
Birthstone:
Benitoite is not an official birthstone of any month

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