Diaspore (21.70 Carat )
18.80 x 13.91 mm
Stone Type : | Diaspore |
Stone Shape : | Emerald |
Stone Weight : | 21.70 carat |
Length X Width : | 18.80 x 13.91 mm |
Length / Width Ratio : | 1.35 |
Approx Face-up Area : | 243.22 mm² |
Approx Volume : | 1,276.35 mm³ |
How many Colors Available for Diaspore ?
Light Red , Red , Dark Red , Light Orange , Light Brown , Brown , Light Yellow , Light Yellowish Green , Yellowish Green , Light Green , Light Violet , Light Purple ,
Diaspore is quite rare color-changing gemstone mined only in the remote location in Turkey's Anatolian Mountains. It appears yellowish-green to light green in daylight, changing to pinkish hues in incandescent lighting.
Name of Stone : | Diaspore |
Mineral : | Diaspore |
Shape : | Emerald |
Chemical Formula : | AlO(OH) |
Crystal Structure : | Orthorhombic |
Hardness : | 6.5 - 7 |
Specific Gravity : | 3.4 |
Carat weight : | 21.70 carat |
Gram weight : | 4.340 gm |
Ounces weight : | 0.1531 ounces |
Length : | 18.80 mm |
Width : | 13.91 mm |
Length / Width Ratio : | 1.35 |
Average diameter : | 16.35 mm |
Approx Face-up Area : | 243.22 mm² |
Approx Volume : | 1,276.35 mm³ |
Refractive Index : | 1.70 - 1.75 |
Cleavage : | 1,2;2,1 |
Luster : | Vitreous |
Birefringence : | 0.048 |
Wearability : | Good |
Birthstone : | Diaspore 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
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1.00 ct - Emerald - Diaspore
7.40 ct - Emerald - Diaspore
7.60 ct - Emerald - Diaspore
13.10 ct - Emerald - Diaspore
10.30 ct - Emerald - Diaspore
17.00 ct - Emerald - Diaspore
24.30 ct - Emerald - Diaspore
27.40 ct - Emerald - Diaspore
22.80 ct - Emerald - Diaspore
32.50 ct - Emerald - Diaspore
38.90 ct - Emerald - Diaspore
30.90 ct - Emerald - Diaspore
7.40 ct - Emerald - Diaspore
7.60 ct - Emerald - Diaspore
13.10 ct - Emerald - Diaspore
10.30 ct - Emerald - Diaspore
17.00 ct - Emerald - Diaspore
24.30 ct - Emerald - Diaspore
27.40 ct - Emerald - Diaspore
22.80 ct - Emerald - Diaspore
32.50 ct - Emerald - Diaspore
38.90 ct - Emerald - Diaspore
30.90 ct - Emerald - Diaspore
3.30 ct - Diamond - Marquise
4.40 ct - Kunzite - Baguette
8.50 ct - Emerald - Cushion
9.30 ct - Diopside - Marquise
7.50 ct - Diopside - Pear
6.00 ct - Tanzanite - Pear
10.30 ct - Morganite - Marquise
17.60 ct - Ruby - Round
12.50 ct - Sinhalite - Pear
19.90 ct - Beryl - Pear
16.50 ct - Sinhalite - Trillion
12.60 ct - Quartz - Round
24.40 ct - Sapphire - Trillion
22.40 ct - Ruby - Round
25.80 ct - Andesine - Princess
28.80 ct - Ruby - Marquise
26.50 ct - Alexandrite - Baguette
21.70 ct - Ruby - Oval
30.20 ct - Spinel - Princess
33.40 ct - Diamond - Emerald
38.80 ct - Emerald - Marquise
31.80 ct - Alexandrite - Cushion
38.80 ct - Morganite - Baguette
37.30 ct - Fluorite - Cushion
V S
4.40 ct - Kunzite - Baguette
8.50 ct - Emerald - Cushion
V S
9.30 ct - Diopside - Marquise
7.50 ct - Diopside - Pear
V S
6.00 ct - Tanzanite - Pear
10.30 ct - Morganite - Marquise
V S
17.60 ct - Ruby - Round
12.50 ct - Sinhalite - Pear
V S
19.90 ct - Beryl - Pear
16.50 ct - Sinhalite - Trillion
V S
12.60 ct - Quartz - Round
24.40 ct - Sapphire - Trillion
V S
22.40 ct - Ruby - Round
25.80 ct - Andesine - Princess
V S
28.80 ct - Ruby - Marquise
26.50 ct - Alexandrite - Baguette
V S
21.70 ct - Ruby - Oval
30.20 ct - Spinel - Princess
V S
33.40 ct - Diamond - Emerald
38.80 ct - Emerald - Marquise
V S
31.80 ct - Alexandrite - Cushion
38.80 ct - Morganite - Baguette
V S
37.30 ct - Fluorite - Cushion
5.30 ct - Baguette- Diamond
4.50 ct - Emerald- Diamond
3.60 ct - Round- Diamond
8.20 ct - Marquise- Diamond
4.50 ct - Emerald- Diamond
9.40 ct - Trillion- Diamond
12.60 ct - Pear- Diamond
14.10 ct - Trillion- Diamond
19.70 ct - Princess- Diamond
10.70 ct - Pear- Diamond
15.00 ct - Oval- Diamond
11.40 ct - Pear- Diamond
26.30 ct - Baguette- Diamond
21.80 ct - Baguette- Diamond
29.80 ct - Emerald- Diamond
20.00 ct - Oval- Diamond
26.00 ct - Emerald- Diamond
20.50 ct - Marquise- Diamond
35.40 ct - Trillion- Diamond
31.30 ct - Pear- Diamond
39.50 ct - Oval- Diamond
32.20 ct - Cushion- Diamond
30.60 ct - Emerald- Diamond
31.70 ct - Princess- Diamond
V S
4.50 ct - Emerald- Diamond
3.60 ct - Round- Diamond
V S
8.20 ct - Marquise- Diamond
4.50 ct - Emerald- Diamond
V S
9.40 ct - Trillion- Diamond
12.60 ct - Pear- Diamond
V S
14.10 ct - Trillion- Diamond
19.70 ct - Princess- Diamond
V S
10.70 ct - Pear- Diamond
15.00 ct - Oval- Diamond
V S
11.40 ct - Pear- Diamond
26.30 ct - Baguette- Diamond
V S
21.80 ct - Baguette- Diamond
29.80 ct - Emerald- Diamond
V S
20.00 ct - Oval- Diamond
26.00 ct - Emerald- Diamond
V S
20.50 ct - Marquise- Diamond
35.40 ct - Trillion- Diamond
V S
31.30 ct - Pear- Diamond
39.50 ct - Oval- Diamond
V S
32.20 ct - Cushion- Diamond
30.60 ct - Emerald- Diamond
V S
31.70 ct - Princess- Diamond