Sinhalite (39.90 Carat )
35.36 x 17.68 mm
Stone Type : | Sinhalite |
Stone Shape : | Marquise |
Stone Weight : | 39.90 carat |
Length X Width : | 35.36 x 17.68 mm |
Length / Width Ratio : | 2.00 |
Approx Face-up Area : | 444.00 mm² |
Approx Volume : | 2,292.99 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 : | 39.90 carat |
Gram weight : | 7.980 gm |
Ounces weight : | 0.2815 ounces |
Length : | 35.36 mm |
Width : | 17.68 mm |
Length / Width Ratio : | 2.00 |
Average diameter : | 26.52 mm |
Approx Face-up Area : | 444.00 mm² |
Approx Volume : | 2,292.99 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
4.70 ct - Marquise - Sinhalite
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14.20 ct - Marquise - Sinhalite
13.60 ct - Marquise - Sinhalite
26.10 ct - Marquise - Sinhalite
22.40 ct - Marquise - Sinhalite
25.00 ct - Marquise - Sinhalite
37.10 ct - Marquise - Sinhalite
31.20 ct - Marquise - Sinhalite
31.60 ct - Marquise - Sinhalite
6.10 ct - Spinel - Princess
3.30 ct - Chrysoberyl - Emerald
0.70 ct - Aquamarine - Emerald
5.40 ct - Alexandrite - Pear
10.00 ct - Benitoite - Oval
4.00 ct - Sinhalite - Trillion
11.50 ct - Quartz - Baguette
19.60 ct - Sapphire - Emerald
12.80 ct - Kyanite - Cushion
14.30 ct - Diamond - Pear
10.20 ct - Kyanite - Emerald
11.90 ct - Tanzanite - Marquise
29.90 ct - Beryl - Princess
29.40 ct - Tanzanite - Baguette
23.80 ct - Diaspore - Pear
26.80 ct - Sapphire - Oval
20.70 ct - Quartz - Baguette
25.70 ct - Alexandrite - Round
40.00 ct - Emerald - Oval
39.80 ct - Diopside - Marquise
30.90 ct - Hiddenite - Pear
38.70 ct - Emerald - Emerald
30.20 ct - Chrysoberyl - Princess
34.40 ct - Diaspore - Baguette
V S
3.30 ct - Chrysoberyl - Emerald
0.70 ct - Aquamarine - Emerald
V S
5.40 ct - Alexandrite - Pear
10.00 ct - Benitoite - Oval
V S
4.00 ct - Sinhalite - Trillion
11.50 ct - Quartz - Baguette
V S
19.60 ct - Sapphire - Emerald
12.80 ct - Kyanite - Cushion
V S
14.30 ct - Diamond - Pear
10.20 ct - Kyanite - Emerald
V S
11.90 ct - Tanzanite - Marquise
29.90 ct - Beryl - Princess
V S
29.40 ct - Tanzanite - Baguette
23.80 ct - Diaspore - Pear
V S
26.80 ct - Sapphire - Oval
20.70 ct - Quartz - Baguette
V S
25.70 ct - Alexandrite - Round
40.00 ct - Emerald - Oval
V S
39.80 ct - Diopside - Marquise
30.90 ct - Hiddenite - Pear
V S
38.70 ct - Emerald - Emerald
30.20 ct - Chrysoberyl - Princess
V S
34.40 ct - Diaspore - Baguette
6.90 ct - Emerald- Diamond
9.00 ct - Emerald- Diamond
9.40 ct - Pear- Diamond
6.50 ct - Princess- Diamond
2.70 ct - Pear- Diamond
5.30 ct - Emerald- Diamond
20.00 ct - Cushion- Diamond
17.20 ct - Baguette- Diamond
18.60 ct - Trillion- Diamond
17.20 ct - Baguette- Diamond
13.20 ct - Oval- Diamond
11.40 ct - Cushion- Diamond
23.70 ct - Oval- Diamond
20.60 ct - Round- Diamond
22.20 ct - Princess- Diamond
21.60 ct - Princess- Diamond
23.70 ct - Marquise- Diamond
23.80 ct - Pear- Diamond
35.00 ct - Trillion- Diamond
33.50 ct - Trillion- Diamond
31.40 ct - Cushion- Diamond
33.90 ct - Oval- Diamond
31.30 ct - Baguette- Diamond
36.10 ct - Pear- Diamond
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9.00 ct - Emerald- Diamond
9.40 ct - Pear- Diamond
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6.50 ct - Princess- Diamond
2.70 ct - Pear- Diamond
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5.30 ct - Emerald- Diamond
20.00 ct - Cushion- Diamond
V S
17.20 ct - Baguette- Diamond
18.60 ct - Trillion- Diamond
V S
17.20 ct - Baguette- Diamond
13.20 ct - Oval- Diamond
V S
11.40 ct - Cushion- Diamond
23.70 ct - Oval- Diamond
V S
20.60 ct - Round- Diamond
22.20 ct - Princess- Diamond
V S
21.60 ct - Princess- Diamond
23.70 ct - Marquise- Diamond
V S
23.80 ct - Pear- Diamond
35.00 ct - Trillion- Diamond
V S
33.50 ct - Trillion- Diamond
31.40 ct - Cushion- Diamond
V S
33.90 ct - Oval- Diamond
31.30 ct - Baguette- Diamond
V S
36.10 ct - Pear- Diamond