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13 Carat Sinhalite (Princess, 12.94×12.94mm, Light Brown)

Color:
light brown
actual size
13ct Sinhalite displayed at actual size of 12.94×12.94mm, (Princess cut, Light Brown
Actual size is set for screen


How big is a 13 carat princess-cut Sinhalite?

It depends on the cut parameters, but a typical size of a 13ct princess-cut Sinhalite would be around 12.94×12.94 mm (±6%). You can check how big it looks on a ring and finger below. 
Ring:
Skin tone:
Ring width: 3.0 mm
Saved...
Finger image
Ring on finger
Light Brown 13ct Sinhalite (princess cut) shown in real-world size of 12.94×12.94mm 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
77 %
Saved...
Ring diameter: 16.9 mm
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Additional Info

Sinhalite is one of the more recently discovered gemstones of earth-tone brown colors. It was first discovered in Sri Lanka in early 1950's and was named after the country – Sinhala is a Sanskrit name for Sri Lanka.

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

Gem Details

Name:
Sinhalite
Shape:
Princess
Chemical Formula:
MgAlBO4
Crystal Structure:
Orthorhombic
Hardness:
6-7
Specific Gravity
3.48
Carat weight:
13 ct
Gram weight:
2.6 g (0.0917 ounces)
Points:
1300 pts
Length:
12.94 mm
Width:
12.94 mm
Est. face-up size:
167.44 mm²
Volume:
747.13 mm³
Length-to-width ratio:
1
Refractive Index:
1.665 - 1.712
Luster:
Vitreous
Wearability:
Very good
Care Instructions:
No special or unusual care
Color:
Sinhalite can be found in the following colors:
Color WhiteColor Light BrownColor Brown
Birthstone:
Sinhalite is not an official birthstone of any month

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