Peridot (28.20 Carat )
26.81 x 16.16 mm
Stone Type : | Peridot |
Stone Shape : | Pear |
Stone Weight : | 28.20 carat |
Length X Width : | 26.81 x 16.16 mm |
Length / Width Ratio : | 1.66 |
Approx Face-up Area : | 316.30 mm² |
Approx Volume : | 1,683.49 mm³ |
How many Colors Available for Peridot ?
Light Yellowish Green , Yellowish Green , Dark Yellowish Green , Light Green , Green , Dark Green ,
Peridot is quite an affordable gem, found naturally in yellowish-green or olive-green color. Ancient Egyptians called it "the gem of the sun". Dark olive-green gems are the most valued.
Name of Stone : | Peridot |
Mineral : | Olivine |
Shape : | Pear |
Chemical Formula : | (Mg,Fe)2SiO4 |
Crystal Structure : | Orthorhombic |
Hardness : | 6.5 |
Specific Gravity : | 3.35 |
Carat weight : | 28.20 carat |
Gram weight : | 5.640 gm |
Ounces weight : | 0.1989 ounces |
Length : | 26.81 mm |
Width : | 16.16 mm |
Length / Width Ratio : | 1.66 |
Average diameter : | 21.49 mm |
Approx Face-up Area : | 316.30 mm² |
Approx Volume : | 1,683.49 mm³ |
Refractive Index : | 2.63 - 2.65 |
Cleavage : | Poor (2,1 ; 3,1) |
Luster : | Vitreous |
Birefringence : | 0.009 |
Wearability : | Very good |
Birthstone : | Peridot is a birthstone for the month of August |
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
8.30 ct - Pear - Peridot
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V S
6.30 ct - Quartz - Marquise
3.00 ct - Tanzanite - Princess
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6.90 ct - Kunzite - Pear
4.20 ct - Diaspore - Baguette
V S
5.20 ct - Hiddenite - Oval
19.90 ct - Beryl - Marquise
V S
16.40 ct - Diaspore - Round
16.70 ct - Fluorite - Princess
V S
13.10 ct - Hiddenite - Baguette
19.40 ct - Diamond - Round
V S
13.00 ct - Benitoite - Oval
22.50 ct - Alexandrite - Trillion
V S
26.20 ct - Hiddenite - Oval
24.30 ct - Andesine - Trillion
V S
25.00 ct - Ruby - Pear
27.10 ct - Apatite - Round
V S
20.80 ct - Diaspore - Cushion
34.40 ct - Alexandrite - Cushion
V S
35.30 ct - Kyanite - Trillion
39.30 ct - Amethyst - Pear
V S
38.40 ct - Andesine - Princess
31.60 ct - Kunzite - Round
V S
34.40 ct - Spinel - Cushion
7.60 ct - Emerald- Diamond
8.50 ct - Round- Diamond
5.00 ct - Emerald- Diamond
8.10 ct - Emerald- Diamond
4.70 ct - Baguette- Diamond
5.60 ct - Trillion- Diamond
18.50 ct - Oval- Diamond
19.10 ct - Baguette- Diamond
16.00 ct - Round- Diamond
13.10 ct - Trillion- Diamond
15.10 ct - Marquise- Diamond
19.10 ct - Emerald- Diamond
20.90 ct - Baguette- Diamond
26.20 ct - Baguette- Diamond
27.40 ct - Pear- Diamond
21.80 ct - Baguette- Diamond
26.10 ct - Pear- Diamond
26.70 ct - Round- Diamond
33.40 ct - Oval- Diamond
35.70 ct - Pear- Diamond
34.50 ct - Round- Diamond
38.30 ct - Princess- Diamond
31.90 ct - Emerald- Diamond
33.90 ct - Baguette- Diamond
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8.50 ct - Round- Diamond
5.00 ct - Emerald- Diamond
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8.10 ct - Emerald- Diamond
4.70 ct - Baguette- Diamond
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5.60 ct - Trillion- Diamond
18.50 ct - Oval- Diamond
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19.10 ct - Baguette- Diamond
16.00 ct - Round- Diamond
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13.10 ct - Trillion- Diamond
15.10 ct - Marquise- Diamond
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19.10 ct - Emerald- Diamond
20.90 ct - Baguette- Diamond
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26.20 ct - Baguette- Diamond
27.40 ct - Pear- Diamond
V S
21.80 ct - Baguette- Diamond
26.10 ct - Pear- Diamond
V S
26.70 ct - Round- Diamond
33.40 ct - Oval- Diamond
V S
35.70 ct - Pear- Diamond
34.50 ct - Round- Diamond
V S
38.30 ct - Princess- Diamond
31.90 ct - Emerald- Diamond
V S
33.90 ct - Baguette- Diamond