Peridot (27.90 Carat )
17.97 x 17.97 mm
Stone Type : | Peridot |
Stone Shape : | Cushion |
Stone Weight : | 27.90 carat |
Length X Width : | 17.97 x 17.97 mm |
Length / Width Ratio : | 1.00 |
Approx Face-up Area : | 290.75 mm² |
Approx Volume : | 1,665.59 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 : | Cushion |
Chemical Formula : | (Mg,Fe)2SiO4 |
Crystal Structure : | Orthorhombic |
Hardness : | 6.5 |
Specific Gravity : | 3.35 |
Carat weight : | 27.90 carat |
Gram weight : | 5.580 gm |
Ounces weight : | 0.1968 ounces |
Length : | 17.97 mm |
Width : | 17.97 mm |
Length / Width Ratio : | 1.00 |
Average diameter : | 17.97 mm |
Approx Face-up Area : | 290.75 mm² |
Approx Volume : | 1,665.59 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
1.80 ct - Cushion - Peridot
2.60 ct - Cushion - Peridot
3.90 ct - Cushion - Peridot
15.10 ct - Cushion - Peridot
13.80 ct - Cushion - Peridot
11.10 ct - Cushion - Peridot
25.60 ct - Cushion - Peridot
25.20 ct - Cushion - Peridot
24.90 ct - Cushion - Peridot
33.90 ct - Cushion - Peridot
33.30 ct - Cushion - Peridot
31.40 ct - Cushion - Peridot
2.60 ct - Cushion - Peridot
3.90 ct - Cushion - Peridot
15.10 ct - Cushion - Peridot
13.80 ct - Cushion - Peridot
11.10 ct - Cushion - Peridot
25.60 ct - Cushion - Peridot
25.20 ct - Cushion - Peridot
24.90 ct - Cushion - Peridot
33.90 ct - Cushion - Peridot
33.30 ct - Cushion - Peridot
31.40 ct - Cushion - Peridot
3.40 ct - Spinel - Emerald
3.00 ct - Chrysoberyl - Trillion
2.50 ct - Spinel - Oval
2.30 ct - Andesine - Emerald
2.40 ct - Aquamarine - Baguette
1.80 ct - Kyanite - Princess
14.50 ct - Sapphire - Cushion
14.40 ct - Sinhalite - Baguette
17.90 ct - Spinel - Baguette
10.60 ct - Benitoite - Trillion
18.90 ct - Diaspore - Emerald
11.10 ct - Sapphire - Princess
29.00 ct - Tanzanite - Pear
21.30 ct - Spinel - Trillion
25.10 ct - Emerald - Baguette
20.00 ct - Sapphire - Round
24.00 ct - Hiddenite - Cushion
24.20 ct - Morganite - Trillion
31.20 ct - Aquamarine - Cushion
33.70 ct - Citrine - Marquise
39.50 ct - Ruby - Pear
33.50 ct - Fluorite - Princess
37.50 ct - Andesine - Princess
37.80 ct - Kunzite - Baguette
V S
3.00 ct - Chrysoberyl - Trillion
2.50 ct - Spinel - Oval
V S
2.30 ct - Andesine - Emerald
2.40 ct - Aquamarine - Baguette
V S
1.80 ct - Kyanite - Princess
14.50 ct - Sapphire - Cushion
V S
14.40 ct - Sinhalite - Baguette
17.90 ct - Spinel - Baguette
V S
10.60 ct - Benitoite - Trillion
18.90 ct - Diaspore - Emerald
V S
11.10 ct - Sapphire - Princess
29.00 ct - Tanzanite - Pear
V S
21.30 ct - Spinel - Trillion
25.10 ct - Emerald - Baguette
V S
20.00 ct - Sapphire - Round
24.00 ct - Hiddenite - Cushion
V S
24.20 ct - Morganite - Trillion
31.20 ct - Aquamarine - Cushion
V S
33.70 ct - Citrine - Marquise
39.50 ct - Ruby - Pear
V S
33.50 ct - Fluorite - Princess
37.50 ct - Andesine - Princess
V S
37.80 ct - Kunzite - Baguette
4.30 ct - Pear- Diamond
3.70 ct - Pear- Diamond
5.30 ct - Round- Diamond
7.70 ct - Oval- Diamond
2.00 ct - Princess- Diamond
7.90 ct - Cushion- Diamond
13.60 ct - Marquise- Diamond
10.10 ct - Pear- Diamond
12.20 ct - Cushion- Diamond
12.10 ct - Pear- Diamond
12.10 ct - Marquise- Diamond
12.60 ct - Princess- Diamond
20.40 ct - Round- Diamond
24.00 ct - Trillion- Diamond
26.50 ct - Cushion- Diamond
21.90 ct - Baguette- Diamond
20.70 ct - Marquise- Diamond
21.40 ct - Marquise- Diamond
35.00 ct - Round- Diamond
31.10 ct - Pear- Diamond
39.40 ct - Cushion- Diamond
30.50 ct - Marquise- Diamond
32.60 ct - Cushion- Diamond
37.60 ct - Princess- Diamond
V S
3.70 ct - Pear- Diamond
5.30 ct - Round- Diamond
V S
7.70 ct - Oval- Diamond
2.00 ct - Princess- Diamond
V S
7.90 ct - Cushion- Diamond
13.60 ct - Marquise- Diamond
V S
10.10 ct - Pear- Diamond
12.20 ct - Cushion- Diamond
V S
12.10 ct - Pear- Diamond
12.10 ct - Marquise- Diamond
V S
12.60 ct - Princess- Diamond
20.40 ct - Round- Diamond
V S
24.00 ct - Trillion- Diamond
26.50 ct - Cushion- Diamond
V S
21.90 ct - Baguette- Diamond
20.70 ct - Marquise- Diamond
V S
21.40 ct - Marquise- Diamond
35.00 ct - Round- Diamond
V S
31.10 ct - Pear- Diamond
39.40 ct - Cushion- Diamond
V S
30.50 ct - Marquise- Diamond
32.60 ct - Cushion- Diamond
V S
37.60 ct - Princess- Diamond