Apatite (20.50 Carat )
18.87 x 13.96 mm
Stone Type : | Apatite |
Stone Shape : | Emerald |
Stone Weight : | 20.50 carat |
Length X Width : | 18.87 x 13.96 mm |
Length / Width Ratio : | 1.35 |
Approx Face-up Area : | 244.94 mm² |
Approx Volume : | 1,281.20 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 : | Emerald |
Chemical Formula : | Ca5(PO4)3(F,OH,Cl) |
Crystal Structure : | Hexagonal |
Hardness : | 5 |
Specific Gravity : | 3.2 |
Carat weight : | 20.50 carat |
Gram weight : | 4.100 gm |
Ounces weight : | 0.1446 ounces |
Length : | 18.87 mm |
Width : | 13.96 mm |
Length / Width Ratio : | 1.35 |
Average diameter : | 16.41 mm |
Approx Face-up Area : | 244.94 mm² |
Approx Volume : | 1,281.20 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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3.10 ct - Apatite - Round
13.30 ct - Hiddenite - Baguette
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16.30 ct - Fluorite - Emerald
13.00 ct - Diaspore - Princess
V S
15.20 ct - Andesine - Pear
19.10 ct - Spinel - Oval
V S
12.90 ct - Spinel - Cushion
23.40 ct - Citrine - Oval
V S
23.40 ct - Kyanite - Trillion
23.90 ct - Tanzanite - Round
V S
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20.10 ct - Citrine - Emerald
V S
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30.20 ct - Spinel - Pear
V S
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30.60 ct - Diamond - Round
V S
31.40 ct - Citrine - Cushion
34.50 ct - Tanzanite - Marquise
V S
34.70 ct - Beryl - Oval
2.30 ct - Emerald- Diamond
3.60 ct - Trillion- Diamond
8.70 ct - Cushion- Diamond
5.00 ct - Cushion- Diamond
2.90 ct - Round- Diamond
5.40 ct - Emerald- Diamond
17.70 ct - Princess- Diamond
16.60 ct - Pear- Diamond
12.30 ct - Pear- Diamond
17.70 ct - Round- Diamond
15.00 ct - Princess- Diamond
15.60 ct - Emerald- Diamond
25.80 ct - Round- Diamond
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39.50 ct - Trillion- Diamond
V S
37.40 ct - Round- Diamond
36.20 ct - Princess- Diamond
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37.30 ct - Princess- Diamond
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