Alexandrite (26.70 Carat )
19.58 x 14.49 mm
Stone Type : | Alexandrite |
Stone Shape : | Emerald |
Stone Weight : | 26.70 carat |
Length X Width : | 19.58 x 14.49 mm |
Length / Width Ratio : | 1.35 |
Approx Face-up Area : | 263.87 mm² |
Approx Volume : | 1,443.09 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 : | Emerald |
Chemical Formula : | BeAl2O4 |
Crystal Structure : | Orthorhombic |
Hardness : | 8.5 |
Specific Gravity : | 3.7 |
Carat weight : | 26.70 carat |
Gram weight : | 5.340 gm |
Ounces weight : | 0.1884 ounces |
Length : | 19.58 mm |
Width : | 14.49 mm |
Length / Width Ratio : | 1.35 |
Average diameter : | 17.04 mm |
Approx Face-up Area : | 263.87 mm² |
Approx Volume : | 1,443.09 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
3.60 ct - Emerald - Alexandrite
7.00 ct - Emerald - Alexandrite
7.80 ct - Emerald - Alexandrite
10.90 ct - Emerald - Alexandrite
17.40 ct - Emerald - Alexandrite
11.90 ct - Emerald - Alexandrite
21.90 ct - Emerald - Alexandrite
23.20 ct - Emerald - Alexandrite
23.60 ct - Emerald - Alexandrite
40.00 ct - Emerald - Alexandrite
30.30 ct - Emerald - Alexandrite
32.90 ct - Emerald - Alexandrite
7.00 ct - Emerald - Alexandrite
7.80 ct - Emerald - Alexandrite
10.90 ct - Emerald - Alexandrite
17.40 ct - Emerald - Alexandrite
11.90 ct - Emerald - Alexandrite
21.90 ct - Emerald - Alexandrite
23.20 ct - Emerald - Alexandrite
23.60 ct - Emerald - Alexandrite
40.00 ct - Emerald - Alexandrite
30.30 ct - Emerald - Alexandrite
32.90 ct - Emerald - Alexandrite
9.20 ct - Spinel - Trillion
6.20 ct - Sapphire - Trillion
1.00 ct - Peridot - Emerald
8.90 ct - Kyanite - Cushion
4.90 ct - Benitoite - Baguette
7.70 ct - Morganite - Baguette
19.70 ct - Beryl - Round
12.70 ct - Tanzanite - Cushion
18.70 ct - Spinel - Oval
11.20 ct - Andesine - Trillion
15.00 ct - Tanzanite - Cushion
13.00 ct - Diopside - Trillion
29.90 ct - Apatite - Oval
26.10 ct - Andesine - Emerald
22.10 ct - Ruby - Trillion
20.30 ct - Andesine - Princess
26.60 ct - Tanzanite - Cushion
28.80 ct - Sapphire - Pear
32.40 ct - Kunzite - Trillion
35.60 ct - Tanzanite - Princess
39.70 ct - Ruby - Emerald
38.00 ct - Aquamarine - Oval
38.60 ct - Quartz - Emerald
30.50 ct - Spinel - Cushion
V S
6.20 ct - Sapphire - Trillion
1.00 ct - Peridot - Emerald
V S
8.90 ct - Kyanite - Cushion
4.90 ct - Benitoite - Baguette
V S
7.70 ct - Morganite - Baguette
19.70 ct - Beryl - Round
V S
12.70 ct - Tanzanite - Cushion
18.70 ct - Spinel - Oval
V S
11.20 ct - Andesine - Trillion
15.00 ct - Tanzanite - Cushion
V S
13.00 ct - Diopside - Trillion
29.90 ct - Apatite - Oval
V S
26.10 ct - Andesine - Emerald
22.10 ct - Ruby - Trillion
V S
20.30 ct - Andesine - Princess
26.60 ct - Tanzanite - Cushion
V S
28.80 ct - Sapphire - Pear
32.40 ct - Kunzite - Trillion
V S
35.60 ct - Tanzanite - Princess
39.70 ct - Ruby - Emerald
V S
38.00 ct - Aquamarine - Oval
38.60 ct - Quartz - Emerald
V S
30.50 ct - Spinel - Cushion
0.50 ct - Round- Diamond
7.70 ct - Emerald- Diamond
9.10 ct - Pear- Diamond
1.30 ct - Pear- Diamond
8.00 ct - Princess- Diamond
4.00 ct - Cushion- Diamond
18.00 ct - Princess- Diamond
16.70 ct - Princess- Diamond
16.40 ct - Princess- Diamond
19.90 ct - Baguette- Diamond
17.50 ct - Marquise- Diamond
14.70 ct - Round- Diamond
25.10 ct - Princess- Diamond
20.90 ct - Pear- Diamond
26.50 ct - Oval- Diamond
26.20 ct - Emerald- Diamond
25.20 ct - Pear- Diamond
22.10 ct - Marquise- Diamond
35.90 ct - Marquise- Diamond
33.10 ct - Oval- Diamond
34.20 ct - Round- Diamond
33.20 ct - Pear- Diamond
34.00 ct - Emerald- Diamond
36.90 ct - Marquise- Diamond
V S
7.70 ct - Emerald- Diamond
9.10 ct - Pear- Diamond
V S
1.30 ct - Pear- Diamond
8.00 ct - Princess- Diamond
V S
4.00 ct - Cushion- Diamond
18.00 ct - Princess- Diamond
V S
16.70 ct - Princess- Diamond
16.40 ct - Princess- Diamond
V S
19.90 ct - Baguette- Diamond
17.50 ct - Marquise- Diamond
V S
14.70 ct - Round- Diamond
25.10 ct - Princess- Diamond
V S
20.90 ct - Pear- Diamond
26.50 ct - Oval- Diamond
V S
26.20 ct - Emerald- Diamond
25.20 ct - Pear- Diamond
V S
22.10 ct - Marquise- Diamond
35.90 ct - Marquise- Diamond
V S
33.10 ct - Oval- Diamond
34.20 ct - Round- Diamond
V S
33.20 ct - Pear- Diamond
34.00 ct - Emerald- Diamond
V S
36.90 ct - Marquise- Diamond