Topaz (10.90 Carat )
13.81 x 13.81 mm
Stone Type : | Topaz |
Stone Shape : | Round |
Stone Weight : | 10.90 carat |
Length X Width : | 13.81 x 13.81 mm |
Length / Width Ratio : | 1.00 |
Approx Face-up Area : | 149.82 mm² |
Approx Volume : | 617.57 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 : | Round |
Chemical Formula : | Al2SiO4(F,OH)2 |
Crystal Structure : | Orthorhombic |
Hardness : | 8 |
Specific Gravity : | 3.53 |
Carat weight : | 10.90 carat |
Gram weight : | 2.180 gm |
Ounces weight : | 0.0769 ounces |
Length : | 13.81 mm |
Width : | 13.81 mm |
Length / Width Ratio : | 1.00 |
Average diameter : | 13.81 mm |
Approx Face-up Area : | 149.82 mm² |
Approx Volume : | 617.57 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
4.80 ct - Fluorite - Pear
1.30 ct - Fluorite - Marquise
4.30 ct - Alexandrite - Pear
7.30 ct - Quartz - Baguette
4.30 ct - Sinhalite - Trillion
3.50 ct - Diopside - Trillion
13.60 ct - Kunzite - Baguette
19.50 ct - Diaspore - Princess
11.80 ct - Fluorite - Oval
16.70 ct - Ruby - Pear
17.70 ct - Kyanite - Baguette
12.60 ct - Alexandrite - Pear
29.60 ct - Beryl - Baguette
25.10 ct - Andesine - Pear
25.70 ct - Amethyst - Oval
27.00 ct - Quartz - Cushion
22.40 ct - Kyanite - Round
23.60 ct - Aquamarine - Round
33.40 ct - Spinel - Pear
31.50 ct - Aquamarine - Marquise
37.80 ct - Alexandrite - Trillion
35.50 ct - Tanzanite - Marquise
30.90 ct - Ruby - Trillion
35.60 ct - Diaspore - Baguette
V S
1.30 ct - Fluorite - Marquise
4.30 ct - Alexandrite - Pear
V S
7.30 ct - Quartz - Baguette
4.30 ct - Sinhalite - Trillion
V S
3.50 ct - Diopside - Trillion
13.60 ct - Kunzite - Baguette
V S
19.50 ct - Diaspore - Princess
11.80 ct - Fluorite - Oval
V S
16.70 ct - Ruby - Pear
17.70 ct - Kyanite - Baguette
V S
12.60 ct - Alexandrite - Pear
29.60 ct - Beryl - Baguette
V S
25.10 ct - Andesine - Pear
25.70 ct - Amethyst - Oval
V S
27.00 ct - Quartz - Cushion
22.40 ct - Kyanite - Round
V S
23.60 ct - Aquamarine - Round
33.40 ct - Spinel - Pear
V S
31.50 ct - Aquamarine - Marquise
37.80 ct - Alexandrite - Trillion
V S
35.50 ct - Tanzanite - Marquise
30.90 ct - Ruby - Trillion
V S
35.60 ct - Diaspore - Baguette
8.20 ct - Marquise- Diamond
4.80 ct - Round- Diamond
1.30 ct - Marquise- Diamond
5.50 ct - Trillion- Diamond
7.90 ct - Baguette- Diamond
3.20 ct - Cushion- Diamond
14.40 ct - Emerald- Diamond
15.00 ct - Trillion- Diamond
19.60 ct - Round- Diamond
12.20 ct - Oval- Diamond
13.80 ct - Baguette- Diamond
20.00 ct - Trillion- Diamond
22.60 ct - Round- Diamond
28.20 ct - Baguette- Diamond
29.90 ct - Marquise- Diamond
25.00 ct - Round- Diamond
21.50 ct - Baguette- Diamond
22.40 ct - Princess- Diamond
32.80 ct - Pear- Diamond
36.20 ct - Oval- Diamond
36.30 ct - Oval- Diamond
32.60 ct - Emerald- Diamond
34.50 ct - Oval- Diamond
32.20 ct - Baguette- Diamond
V S
4.80 ct - Round- Diamond
1.30 ct - Marquise- Diamond
V S
5.50 ct - Trillion- Diamond
7.90 ct - Baguette- Diamond
V S
3.20 ct - Cushion- Diamond
14.40 ct - Emerald- Diamond
V S
15.00 ct - Trillion- Diamond
19.60 ct - Round- Diamond
V S
12.20 ct - Oval- Diamond
13.80 ct - Baguette- Diamond
V S
20.00 ct - Trillion- Diamond
22.60 ct - Round- Diamond
V S
28.20 ct - Baguette- Diamond
29.90 ct - Marquise- Diamond
V S
25.00 ct - Round- Diamond
21.50 ct - Baguette- Diamond
V S
22.40 ct - Princess- Diamond
32.80 ct - Pear- Diamond
V S
36.20 ct - Oval- Diamond
36.30 ct - Oval- Diamond
V S
32.60 ct - Emerald- Diamond
34.50 ct - Oval- Diamond
V S
32.20 ct - Baguette- Diamond