Topaz (7.50 Carat )
13.04 x 9.65 mm
Stone Type : | Topaz |
Stone Shape : | Emerald |
Stone Weight : | 7.50 carat |
Length X Width : | 13.04 x 9.65 mm |
Length / Width Ratio : | 1.35 |
Approx Face-up Area : | 117.06 mm² |
Approx Volume : | 424.94 mm³ |
How many Colors Available for Topaz ?
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 ,
Topaz is a gemstone of many colors. It’s commonly found colorless (white) and then treated to achieve desired colors. Blue Topaz is the most common and popular color variety.
Name of Stone : | Topaz |
Mineral : | Topaz |
Shape : | Emerald |
Chemical Formula : | Al2SiO4(F,OH)2 |
Crystal Structure : | Orthorhombic |
Hardness : | 8 |
Specific Gravity : | 3.53 |
Carat weight : | 7.50 carat |
Gram weight : | 1.500 gm |
Ounces weight : | 0.0529 ounces |
Length : | 13.04 mm |
Width : | 9.65 mm |
Length / Width Ratio : | 1.35 |
Average diameter : | 11.35 mm |
Approx Face-up Area : | 117.06 mm² |
Approx Volume : | 424.94 mm³ |
Refractive Index : | 1.610 - 1.638 |
Cleavage : | 1,3 - basal |
Luster : | Vitreous |
Birefringence : | 0.014 |
Wearability : | Very good |
Birthstone : | Topaz is a birthstone for the month of December |
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
0.80 ct - Emerald - Topaz
2.80 ct - Emerald - Topaz
4.60 ct - Emerald - Topaz
19.40 ct - Emerald - Topaz
14.60 ct - Emerald - Topaz
18.90 ct - Emerald - Topaz
28.20 ct - Emerald - Topaz
21.50 ct - Emerald - Topaz
22.70 ct - Emerald - Topaz
39.00 ct - Emerald - Topaz
32.60 ct - Emerald - Topaz
36.30 ct - Emerald - Topaz
2.80 ct - Emerald - Topaz
4.60 ct - Emerald - Topaz
19.40 ct - Emerald - Topaz
14.60 ct - Emerald - Topaz
18.90 ct - Emerald - Topaz
28.20 ct - Emerald - Topaz
21.50 ct - Emerald - Topaz
22.70 ct - Emerald - Topaz
39.00 ct - Emerald - Topaz
32.60 ct - Emerald - Topaz
36.30 ct - Emerald - Topaz
9.30 ct - Apatite - Princess
3.60 ct - Amethyst - Round
1.20 ct - Aquamarine - Marquise
9.80 ct - Morganite - Marquise
2.00 ct - Fluorite - Trillion
2.10 ct - Emerald - Princess
14.10 ct - Peridot - Oval
13.50 ct - Andesine - Baguette
14.50 ct - Spinel - Cushion
15.50 ct - Spinel - Marquise
10.70 ct - Amethyst - Pear
13.30 ct - Diopside - Princess
23.40 ct - Kunzite - Emerald
23.60 ct - Fluorite - Princess
26.70 ct - Benitoite - Baguette
28.90 ct - Kunzite - Marquise
26.40 ct - Apatite - Marquise
23.90 ct - Beryl - Emerald
36.50 ct - Beryl - Princess
30.90 ct - Sinhalite - Oval
32.50 ct - Sinhalite - Princess
39.40 ct - Alexandrite - Cushion
36.70 ct - Beryl - Oval
39.90 ct - Andesine - Marquise
V S
3.60 ct - Amethyst - Round
1.20 ct - Aquamarine - Marquise
V S
9.80 ct - Morganite - Marquise
2.00 ct - Fluorite - Trillion
V S
2.10 ct - Emerald - Princess
14.10 ct - Peridot - Oval
V S
13.50 ct - Andesine - Baguette
14.50 ct - Spinel - Cushion
V S
15.50 ct - Spinel - Marquise
10.70 ct - Amethyst - Pear
V S
13.30 ct - Diopside - Princess
23.40 ct - Kunzite - Emerald
V S
23.60 ct - Fluorite - Princess
26.70 ct - Benitoite - Baguette
V S
28.90 ct - Kunzite - Marquise
26.40 ct - Apatite - Marquise
V S
23.90 ct - Beryl - Emerald
36.50 ct - Beryl - Princess
V S
30.90 ct - Sinhalite - Oval
32.50 ct - Sinhalite - Princess
V S
39.40 ct - Alexandrite - Cushion
36.70 ct - Beryl - Oval
V S
39.90 ct - Andesine - Marquise
2.90 ct - Pear- Diamond
7.60 ct - Cushion- Diamond
2.00 ct - Baguette- Diamond
4.30 ct - Round- Diamond
3.60 ct - Cushion- Diamond
2.20 ct - Oval- Diamond
18.60 ct - Oval- Diamond
14.50 ct - Emerald- Diamond
14.40 ct - Pear- Diamond
17.00 ct - Trillion- Diamond
18.70 ct - Marquise- Diamond
13.00 ct - Pear- Diamond
26.90 ct - Emerald- Diamond
24.20 ct - Baguette- Diamond
20.70 ct - Cushion- Diamond
23.20 ct - Pear- Diamond
20.50 ct - Round- Diamond
23.50 ct - Oval- Diamond
38.00 ct - Round- Diamond
31.40 ct - Round- Diamond
34.90 ct - Pear- Diamond
37.40 ct - Emerald- Diamond
32.30 ct - Marquise- Diamond
32.00 ct - Marquise- Diamond
V S
7.60 ct - Cushion- Diamond
2.00 ct - Baguette- Diamond
V S
4.30 ct - Round- Diamond
3.60 ct - Cushion- Diamond
V S
2.20 ct - Oval- Diamond
18.60 ct - Oval- Diamond
V S
14.50 ct - Emerald- Diamond
14.40 ct - Pear- Diamond
V S
17.00 ct - Trillion- Diamond
18.70 ct - Marquise- Diamond
V S
13.00 ct - Pear- Diamond
26.90 ct - Emerald- Diamond
V S
24.20 ct - Baguette- Diamond
20.70 ct - Cushion- Diamond
V S
23.20 ct - Pear- Diamond
20.50 ct - Round- Diamond
V S
23.50 ct - Oval- Diamond
38.00 ct - Round- Diamond
V S
31.40 ct - Round- Diamond
34.90 ct - Pear- Diamond
V S
37.40 ct - Emerald- Diamond
32.30 ct - Marquise- Diamond
V S
32.00 ct - Marquise- Diamond