Alexandrite (4.10 Carat )
16.20 x 8.10 mm
Stone Type : | Alexandrite |
Stone Shape : | Marquise |
Stone Weight : | 4.10 carat |
Length X Width : | 16.20 x 8.10 mm |
Length / Width Ratio : | 2.00 |
Approx Face-up Area : | 93.21 mm² |
Approx Volume : | 221.59 mm³ |
How many Colors Available for Alexandrite ?
Red , Dark Red , Light Brown , Brown , Dark Brown , Light Yellowish Green , Yellowish Green , Dark Yellowish Green , Light Green , Green , Dark Green , Light Bluish Green , Bluish Green , Dark Bluish Green , Light Violet , Violet , Dark Violet , Light Purple , Purple , Dark Purple ,
Named after Czar Alexander II (1818–1881) Alexandrite is a rare and valuable color-change variety of chrysoberyl. Alexandrite possesses a surprising ability to change color - from green or bluish-green in daylight, it transforms to purplish or raspberry red in incandescent light.
Name of Stone : | Alexandrite |
Mineral : | Chrysoberyl |
Shape : | Marquise |
Chemical Formula : | BeAl2O4 |
Crystal Structure : | Orthorhombic |
Hardness : | 8.5 |
Specific Gravity : | 3.7 |
Carat weight : | 4.10 carat |
Gram weight : | 0.820 gm |
Ounces weight : | 0.0289 ounces |
Length : | 16.20 mm |
Width : | 8.10 mm |
Length / Width Ratio : | 2.00 |
Average diameter : | 12.15 mm |
Approx Face-up Area : | 93.21 mm² |
Approx Volume : | 221.59 mm³ |
Refractive Index : | 1.744 - 1.755 |
Cleavage : | 1,1 ; 3,2 |
Luster : | Vitreous |
Birefringence : | 0.009 |
Wearability : | Durable gem for daily wear |
Birthstone : | Alexandrite is a birthstone for the month of June |
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
9.70 ct - Marquise - Alexandrite
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2.50 ct - Marquise - Alexandrite
10.20 ct - Marquise - Alexandrite
14.10 ct - Marquise - Alexandrite
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27.00 ct - Marquise - Alexandrite
23.80 ct - Marquise - Alexandrite
26.80 ct - Marquise - Alexandrite
35.00 ct - Marquise - Alexandrite
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6.10 ct - Kunzite - Marquise
8.90 ct - Diopside - Marquise
9.80 ct - Sinhalite - Cushion
6.70 ct - Alexandrite - Emerald
5.20 ct - Apatite - Trillion
13.30 ct - Beryl - Princess
13.00 ct - Andesine - Princess
16.40 ct - Beryl - Round
19.90 ct - Aquamarine - Emerald
12.70 ct - Tanzanite - Oval
14.20 ct - Ruby - Emerald
29.00 ct - Amethyst - Baguette
28.60 ct - Amethyst - Trillion
25.10 ct - Peridot - Trillion
26.30 ct - Quartz - Trillion
27.00 ct - Apatite - Marquise
25.20 ct - Amethyst - Oval
38.10 ct - Peridot - Emerald
38.30 ct - Alexandrite - Princess
39.80 ct - Hiddenite - Emerald
38.70 ct - Quartz - Princess
33.20 ct - Apatite - Oval
31.80 ct - Sapphire - Cushion
V S
6.10 ct - Kunzite - Marquise
8.90 ct - Diopside - Marquise
V S
9.80 ct - Sinhalite - Cushion
6.70 ct - Alexandrite - Emerald
V S
5.20 ct - Apatite - Trillion
13.30 ct - Beryl - Princess
V S
13.00 ct - Andesine - Princess
16.40 ct - Beryl - Round
V S
19.90 ct - Aquamarine - Emerald
12.70 ct - Tanzanite - Oval
V S
14.20 ct - Ruby - Emerald
29.00 ct - Amethyst - Baguette
V S
28.60 ct - Amethyst - Trillion
25.10 ct - Peridot - Trillion
V S
26.30 ct - Quartz - Trillion
27.00 ct - Apatite - Marquise
V S
25.20 ct - Amethyst - Oval
38.10 ct - Peridot - Emerald
V S
38.30 ct - Alexandrite - Princess
39.80 ct - Hiddenite - Emerald
V S
38.70 ct - Quartz - Princess
33.20 ct - Apatite - Oval
V S
31.80 ct - Sapphire - Cushion
7.50 ct - Emerald- Diamond
5.60 ct - Pear- Diamond
5.90 ct - Trillion- Diamond
4.90 ct - Princess- Diamond
2.40 ct - Princess- Diamond
5.70 ct - Baguette- Diamond
13.60 ct - Emerald- Diamond
10.50 ct - Princess- Diamond
12.80 ct - Round- Diamond
14.80 ct - Baguette- Diamond
13.60 ct - Pear- Diamond
13.40 ct - Baguette- Diamond
20.50 ct - Baguette- Diamond
29.70 ct - Round- Diamond
22.90 ct - Baguette- Diamond
21.50 ct - Princess- Diamond
29.80 ct - Baguette- Diamond
28.40 ct - Cushion- Diamond
32.50 ct - Baguette- Diamond
35.40 ct - Trillion- Diamond
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32.40 ct - Trillion- Diamond
30.90 ct - Princess- Diamond
31.00 ct - Baguette- Diamond
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5.60 ct - Pear- Diamond
5.90 ct - Trillion- Diamond
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4.90 ct - Princess- Diamond
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5.70 ct - Baguette- Diamond
13.60 ct - Emerald- Diamond
V S
10.50 ct - Princess- Diamond
12.80 ct - Round- Diamond
V S
14.80 ct - Baguette- Diamond
13.60 ct - Pear- Diamond
V S
13.40 ct - Baguette- Diamond
20.50 ct - Baguette- Diamond
V S
29.70 ct - Round- Diamond
22.90 ct - Baguette- Diamond
V S
21.50 ct - Princess- Diamond
29.80 ct - Baguette- Diamond
V S
28.40 ct - Cushion- Diamond
32.50 ct - Baguette- Diamond
V S
35.40 ct - Trillion- Diamond
34.20 ct - Marquise- Diamond
V S
32.40 ct - Trillion- Diamond
30.90 ct - Princess- Diamond
V S
31.00 ct - Baguette- Diamond