Sinhalite (8.30 Carat )

20.96 x 10.48 mm
Stone Type : | Sinhalite |
Stone Shape : | Marquise |
Stone Weight : | 8.30 carat |
Length X Width : | 20.96 x 10.48 mm |
Length / Width Ratio : | 2.00 |
Approx Face-up Area : | 155.96 mm² |
Approx Volume : | 476.98 mm³ |
How many Colors Available for Sinhalite ?
White , Light Brown , Brown ,



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.
Name of Stone : | Sinhalite |
Mineral : | Sinhalite |
Shape : | Marquise |
Chemical Formula : | MgAlBO4 |
Crystal Structure : | Orthorhombic |
Hardness : | 6-7 |
Specific Gravity : | 3.48 |
Carat weight : | 8.30 carat |
Gram weight : | 1.660 gm |
Ounces weight : | 0.0586 ounces |
Length : | 20.96 mm |
Width : | 10.48 mm |
Length / Width Ratio : | 2.00 |
Average diameter : | 15.72 mm |
Approx Face-up Area : | 155.96 mm² |
Approx Volume : | 476.98 mm³ |
Refractive Index : | 1.665 - 1.712 |
Cleavage : | None |
Luster : | Vitreous |
Birefringence : | 0.036 - 0.042 |
Wearability : | Very good |
Birthstone : | Sinhalite is not an official birthstone for any month |
Before purchasing a diamond, one should make sure it looks its weight. It's important to understand that carat weight does not equal face-up size.
Two diamonds of exactly the same weight (and shape) can vary quite considerably in face-up size. This depends on the proportions of the cut (e.g., deep cuts will face up smaller)..
Face-up area is a measure of the size of the diamond when viewed from the top view.
It tells you how big the diamond is at the girdle plane. It's important for a diamond to have sufficient face-up size for its carat weight
Diamond prices vary greatly as they depend on the combination of unique characteristics (4Cs - Cut, Color, Clarity, and Carat). For best value, it's important to choose the combination that will reduce the price without having a negative impact on appearance.
You also need to consider some of the following points as well
- Strong blue fluorescence.
- Fair or Poor symmetry.
- Extremely thin or extremely thick girdle.
- Inclusions visible to the naked eye.
- Diamond Certification.
Blue fluorescence can have a positive, negative, or zero effect on a diamond. Diamonds in the lower color range (H or lower) can benefit from it, as it can make them look whiter, more colorless. On the other hand, strong fluorescence can cause a stone (especially in the higher color range D-G) to appear hazy or milky under certain light conditions. One of the biggest benefits of fluorescent diamonds is that they generally cost less.
Blue fluorescence can be found in 35% of naturally mined diamonds and it makes the stone glow under UV light. Outside of UV lighting environments, there are no visual differences between fluorescent and non-fluorescent diamonds.
However, there exists a big difference in pricing between these diamonds. In the industry, diamonds with fluorescence are usually traded at a 10-15% discount and can go as high as 25% for higher colored diamonds.
GIA grades fluorescence as None, Faint, Medium, Strong, and Very Strong.
There are Many Laboratory Available which provides certification for Gemstones.
- GIA - Gemological Institute of America
- AGS - American Gemological Society
- HRD - The Hoge Raad voor Diamant
- IGI - International Gemological Institute
- EGL - European Gemological Laboratories
- GSI - Gemological Science International
*Different certification labs give different results
Piecut Diamonds are set of small Diamonds, which are cut & polished with Precised Measurements to look like a Single Solitaire diamond which can save 80% to 85% from Solitaire Single Piece Price.
Shapes of Pie Cut Diamonds.
- 9 Pcs Emerald
- 9 Pcs Round
- 4 Pcs Round
- 3 Pcs Heart
- 4 Pcs Oval
- 4 Pcs Pear
- 4 Pcs Marquise
- 5 Pcs Star
Click here for More Information
9.80 ct - Marquise - Sinhalite
5.80 ct - Marquise - Sinhalite
2.60 ct - Marquise - Sinhalite
20.00 ct - Marquise - Sinhalite
13.70 ct - Marquise - Sinhalite
19.20 ct - Marquise - Sinhalite
24.10 ct - Marquise - Sinhalite
25.40 ct - Marquise - Sinhalite
21.90 ct - Marquise - Sinhalite
33.00 ct - Marquise - Sinhalite
39.60 ct - Marquise - Sinhalite
31.50 ct - Marquise - Sinhalite
5.80 ct - Marquise - Sinhalite
2.60 ct - Marquise - Sinhalite
20.00 ct - Marquise - Sinhalite
13.70 ct - Marquise - Sinhalite
19.20 ct - Marquise - Sinhalite
24.10 ct - Marquise - Sinhalite
25.40 ct - Marquise - Sinhalite
21.90 ct - Marquise - Sinhalite
33.00 ct - Marquise - Sinhalite
39.60 ct - Marquise - Sinhalite
31.50 ct - Marquise - Sinhalite
1.90 ct - Citrine - Emerald
3.80 ct - Benitoite - Cushion
4.30 ct - Citrine - Pear
6.80 ct - Quartz - Princess
9.50 ct - Beryl - Cushion
2.50 ct - Ruby - Cushion
13.70 ct - Ruby - Baguette
11.80 ct - Tanzanite - Pear
15.10 ct - Benitoite - Emerald
17.20 ct - Quartz - Cushion
19.70 ct - Diopside - Pear
11.60 ct - Spinel - Emerald
24.50 ct - Chrysoberyl - Cushion
26.80 ct - Citrine - Marquise
27.30 ct - Diamond - Round
22.50 ct - Quartz - Oval
22.00 ct - Spinel - Cushion
28.80 ct - Benitoite - Pear
34.60 ct - Emerald - Baguette
36.40 ct - Diamond - Cushion
36.10 ct - Benitoite - Trillion
38.40 ct - Sinhalite - Cushion
36.80 ct - Fluorite - Cushion
39.60 ct - Beryl - Cushion
V S
3.80 ct - Benitoite - Cushion
4.30 ct - Citrine - Pear
V S
6.80 ct - Quartz - Princess
9.50 ct - Beryl - Cushion
V S
2.50 ct - Ruby - Cushion
13.70 ct - Ruby - Baguette
V S
11.80 ct - Tanzanite - Pear
15.10 ct - Benitoite - Emerald
V S
17.20 ct - Quartz - Cushion
19.70 ct - Diopside - Pear
V S
11.60 ct - Spinel - Emerald
24.50 ct - Chrysoberyl - Cushion
V S
26.80 ct - Citrine - Marquise
27.30 ct - Diamond - Round
V S
22.50 ct - Quartz - Oval
22.00 ct - Spinel - Cushion
V S
28.80 ct - Benitoite - Pear
34.60 ct - Emerald - Baguette
V S
36.40 ct - Diamond - Cushion
36.10 ct - Benitoite - Trillion
V S
38.40 ct - Sinhalite - Cushion
36.80 ct - Fluorite - Cushion
V S
39.60 ct - Beryl - Cushion
1.10 ct - Cushion- Diamond
9.10 ct - Trillion- Diamond
5.60 ct - Round- Diamond
9.00 ct - Marquise- Diamond
4.40 ct - Pear- Diamond
7.80 ct - Emerald- Diamond
18.80 ct - Pear- Diamond
19.50 ct - Pear- Diamond
18.00 ct - Baguette- Diamond
15.90 ct - Baguette- Diamond
18.20 ct - Marquise- Diamond
19.40 ct - Round- Diamond
26.80 ct - Round- Diamond
27.20 ct - Baguette- Diamond
23.30 ct - Oval- Diamond
23.60 ct - Emerald- Diamond
25.90 ct - Pear- Diamond
24.10 ct - Princess- Diamond
35.40 ct - Oval- Diamond
36.00 ct - Trillion- Diamond
30.30 ct - Oval- Diamond
33.10 ct - Baguette- Diamond
33.20 ct - Oval- Diamond
34.80 ct - Emerald- Diamond
V S
9.10 ct - Trillion- Diamond
5.60 ct - Round- Diamond
V S
9.00 ct - Marquise- Diamond
4.40 ct - Pear- Diamond
V S
7.80 ct - Emerald- Diamond
18.80 ct - Pear- Diamond
V S
19.50 ct - Pear- Diamond
18.00 ct - Baguette- Diamond
V S
15.90 ct - Baguette- Diamond
18.20 ct - Marquise- Diamond
V S
19.40 ct - Round- Diamond
26.80 ct - Round- Diamond
V S
27.20 ct - Baguette- Diamond
23.30 ct - Oval- Diamond
V S
23.60 ct - Emerald- Diamond
25.90 ct - Pear- Diamond
V S
24.10 ct - Princess- Diamond
35.40 ct - Oval- Diamond
V S
36.00 ct - Trillion- Diamond
30.30 ct - Oval- Diamond
V S
33.10 ct - Baguette- Diamond
33.20 ct - Oval- Diamond
V S
34.80 ct - Emerald- Diamond