×
carat vs. color  length*  width*
  ×

(or examine a )
* size in mm (optional)

2.5 Carat Sinhalite (Round, 8.5mm, Light Brown)

Color:
light brown
actual size
2.5ct Sinhalite displayed at actual size of 8.5×8.5mm, (Round cut, Light Brown
check price »
Actual size is set for screen


How big is a 2.5 carat round-cut Sinhalite?

It depends on the cut proportions, but typically a 2.5ct round-cut Sinhalite would measure around 8.5 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
Light Brown 2.5ct Sinhalite (round cut) shown in real-world size of 8.5×8.5mm 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
 51 %
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2

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:
Round
Chemical Formula:
MgAlBO4
Crystal Structure:
Orthorhombic
Hardness:
6-7
Specific Gravity
3.48
Carat weight:
2.5 ct
Gram weight:
0.5 g (0.0176 ounces)
Points:
250 pts
Length:
8.5 mm
Width:
8.5 mm
Average diameter:
8.5 mm
Est. face-up size:
56.75 mm²
Volume:
143.68 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

Popular comparisons: