Chrysoberyl (7.40 Carat )
19.73 x 9.87 mm
Stone Type : | Chrysoberyl |
Stone Shape : | Marquise |
Stone Weight : | 7.40 carat |
Length X Width : | 19.73 x 9.87 mm |
Length / Width Ratio : | 2.00 |
Approx Face-up Area : | 138.24 mm² |
Approx Volume : | 399.95 mm³ |
How many Colors Available for Chrysoberyl ?
Light Yellow , Yellow , Light Yellowish Green , Yellowish Green , Dark Yellowish Green , Light Green , Green , Dark Green ,
Chrysoberyl is a name for a family of gemstones that includes the famous color-changing Alexandrite. Ordinary chrysoberyl is usually yellowish-green in color. Tough and durable gem.
Name of Stone : | Chrysoberyl |
Mineral : | Chrysoberyl |
Shape : | Marquise |
Chemical Formula : | BeAl2O4 |
Crystal Structure : | Orthorhombic |
Hardness : | 8.5 |
Specific Gravity : | 3.7 |
Carat weight : | 7.40 carat |
Gram weight : | 1.480 gm |
Ounces weight : | 0.0522 ounces |
Length : | 19.73 mm |
Width : | 9.87 mm |
Length / Width Ratio : | 2.00 |
Average diameter : | 14.80 mm |
Approx Face-up Area : | 138.24 mm² |
Approx Volume : | 399.95 mm³ |
Refractive Index : | 1.744-1.755 |
Cleavage : | 1,1 ; 3,2 |
Luster : | Vitreous |
Birefringence : | 0.009 |
Wearability : | Durable gem for daily wear |
Birthstone : | Chrysoberyl 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
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26.30 ct - Hiddenite - Trillion
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38.70 ct - Ruby - Cushion
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V S
1.90 ct - Quartz - Oval
8.10 ct - Emerald - Marquise
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7.30 ct - Amethyst - Princess
9.30 ct - Aquamarine - Princess
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2.90 ct - Beryl - Cushion
13.10 ct - Sinhalite - Marquise
V S
19.00 ct - Morganite - Trillion
14.50 ct - Emerald - Baguette
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15.70 ct - Chrysoberyl - Pear
19.00 ct - Morganite - Marquise
V S
18.00 ct - Beryl - Princess
25.40 ct - Kyanite - Cushion
V S
26.80 ct - Ruby - Oval
20.40 ct - Spinel - Marquise
V S
25.30 ct - Diopside - Cushion
21.90 ct - Sapphire - Princess
V S
26.30 ct - Hiddenite - Trillion
39.50 ct - Beryl - Cushion
V S
38.70 ct - Ruby - Cushion
33.00 ct - Peridot - Marquise
V S
30.00 ct - Chrysoberyl - Emerald
35.50 ct - Fluorite - Round
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38.60 ct - Sinhalite - Cushion
2.60 ct - Oval- Diamond
9.20 ct - Cushion- Diamond
6.60 ct - Round- Diamond
2.70 ct - Round- Diamond
9.90 ct - Marquise- Diamond
9.30 ct - Trillion- Diamond
14.10 ct - Baguette- Diamond
10.00 ct - Cushion- Diamond
10.90 ct - Trillion- Diamond
13.90 ct - Pear- Diamond
15.20 ct - Trillion- Diamond
15.30 ct - Emerald- Diamond
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9.90 ct - Marquise- Diamond
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9.30 ct - Trillion- Diamond
14.10 ct - Baguette- Diamond
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10.90 ct - Trillion- Diamond
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38.80 ct - Cushion- Diamond
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34.30 ct - Emerald- Diamond
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