Apatite (20.00 Carat )
28.91 x 14.45 mm
Stone Type : | Apatite |
Stone Shape : | Marquise |
Stone Weight : | 20.00 carat |
Length X Width : | 28.91 x 14.45 mm |
Length / Width Ratio : | 2.00 |
Approx Face-up Area : | 296.63 mm² |
Approx Volume : | 1,249.95 mm³ |
How many Colors Available for Apatite ?
White , Light Red , Red , Dark Red , Orangey Red , Light Orange , Orange , Light Brown , Brown , Dark Brown , Light Yellow , Yellow , Light Yellowish Green , Yellowish Green , Dark Yellowish Green , Light Green , Green , Dark Green , Light Bluish Green , Bluish Green , Dark Bluish Green , Light Blue , Blue , Dark Blue , Light Violet , Violet , Dark Violet , Light Purple , Purple , Dark Purple , Light Grey , Grey ,
Apatite can appear in wide variety of colors, which is why it’s often mistaken for other gems. This characteristic actually gave it the name - from the Greek word apatao, which means "to deceive".
Name of Stone : | Apatite |
Mineral : | Apatite |
Shape : | Marquise |
Chemical Formula : | Ca5(PO4)3(F,OH,Cl) |
Crystal Structure : | Hexagonal |
Hardness : | 5 |
Specific Gravity : | 3.2 |
Carat weight : | 20.00 carat |
Gram weight : | 4.000 gm |
Ounces weight : | 0.1411 ounces |
Length : | 28.91 mm |
Width : | 14.45 mm |
Length / Width Ratio : | 2.00 |
Average diameter : | 21.68 mm |
Approx Face-up Area : | 296.63 mm² |
Approx Volume : | 1,249.95 mm³ |
Refractive Index : | 1.628 - 1.651 |
Cleavage : | Indistinct |
Luster : | Vitreous |
Birefringence : | 0.002 - 0.008 |
Wearability : | Good |
Birthstone : | Apatite 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
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23.10 ct - Marquise - Apatite
20.90 ct - Marquise - Apatite
28.20 ct - Marquise - Apatite
36.50 ct - Marquise - Apatite
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17.30 ct - Kyanite - Marquise
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25.80 ct - Chrysoberyl - Cushion
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V S
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3.60 ct - Emerald - Cushion
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7.50 ct - Sapphire - Baguette
1.10 ct - Ruby - Princess
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11.00 ct - Amethyst - Trillion
V S
17.30 ct - Kyanite - Marquise
10.80 ct - Diopside - Oval
V S
13.90 ct - Kyanite - Pear
19.40 ct - Beryl - Trillion
V S
14.90 ct - Apatite - Oval
27.70 ct - Kunzite - Emerald
V S
23.10 ct - Peridot - Marquise
25.80 ct - Chrysoberyl - Cushion
V S
26.70 ct - Diamond - Emerald
21.00 ct - Diaspore - Marquise
V S
27.70 ct - Fluorite - Baguette
38.10 ct - Ruby - Baguette
V S
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39.80 ct - Andesine - Round
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37.40 ct - Peridot - Princess
38.80 ct - Alexandrite - Cushion
V S
36.30 ct - Benitoite - Baguette
0.50 ct - Oval- Diamond
0.60 ct - Trillion- Diamond
7.00 ct - Baguette- Diamond
2.40 ct - Round- Diamond
8.90 ct - Cushion- Diamond
4.40 ct - Oval- Diamond
14.90 ct - Princess- Diamond
15.50 ct - Trillion- Diamond
13.30 ct - Marquise- Diamond
13.10 ct - Pear- Diamond
13.60 ct - Princess- Diamond
12.40 ct - Round- Diamond
23.90 ct - Pear- Diamond
27.60 ct - Round- Diamond
21.50 ct - Marquise- Diamond
27.10 ct - Oval- Diamond
25.90 ct - Marquise- Diamond
29.70 ct - Emerald- Diamond
32.50 ct - Baguette- Diamond
39.40 ct - Emerald- Diamond
35.70 ct - Pear- Diamond
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8.90 ct - Cushion- Diamond
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14.90 ct - Princess- Diamond
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13.30 ct - Marquise- Diamond
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13.10 ct - Pear- Diamond
13.60 ct - Princess- Diamond
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12.40 ct - Round- Diamond
23.90 ct - Pear- Diamond
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27.60 ct - Round- Diamond
21.50 ct - Marquise- Diamond
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V S
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32.50 ct - Baguette- Diamond
V S
39.40 ct - Emerald- Diamond
35.70 ct - Pear- Diamond
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