Ruby (6.40 Carat )
15.41 x 9.28 mm
Stone Type : | Ruby |
Stone Shape : | Pear |
Stone Weight : | 6.40 carat |
Length X Width : | 15.41 x 9.28 mm |
Length / Width Ratio : | 1.66 |
Approx Face-up Area : | 104.43 mm² |
Approx Volume : | 319.99 mm³ |
How many Colors Available for Ruby ?
Light Red , Red , Dark Red ,
Ruby is a red to pink variety of the mineral Corundum. Its name comes from the Latin word "ruber", which simply means "red". Most Rubies on the market are heat-treated to enhance their color and clarity.
Name of Stone : | Ruby |
Mineral : | Corundum |
Shape : | Pear |
Chemical Formula : | Al2O3 |
Crystal Structure : | Hexagonal |
Hardness : | 9 |
Specific Gravity : | 4 |
Carat weight : | 6.40 carat |
Gram weight : | 1.280 gm |
Ounces weight : | 0.0452 ounces |
Length : | 15.41 mm |
Width : | 9.28 mm |
Length / Width Ratio : | 1.66 |
Average diameter : | 12.35 mm |
Approx Face-up Area : | 104.43 mm² |
Approx Volume : | 319.99 mm³ |
Refractive Index : | 1.76 - 1.77 |
Cleavage : | None |
Luster : | Vitreous to adamantine |
Birefringence : | 0.0008 |
Wearability : | Excellent |
Birthstone : | Ruby is a birthstone for the month of July |
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
6.80 ct - Diamond - Baguette
6.40 ct - Sapphire - Marquise
4.20 ct - Ruby - Marquise
1.10 ct - Aquamarine - Emerald
4.50 ct - Sinhalite - Oval
8.10 ct - Emerald - Princess
10.50 ct - Kunzite - Oval
12.90 ct - Tanzanite - Baguette
19.60 ct - Morganite - Pear
10.40 ct - Kunzite - Oval
18.40 ct - Kyanite - Oval
18.70 ct - Kyanite - Oval
24.60 ct - Fluorite - Emerald
22.70 ct - Alexandrite - Round
29.30 ct - Diamond - Round
24.10 ct - Aquamarine - Princess
28.20 ct - Aquamarine - Baguette
25.60 ct - Citrine - Oval
33.00 ct - Diamond - Princess
33.10 ct - Ruby - Emerald
31.90 ct - Amethyst - Round
33.20 ct - Peridot - Emerald
36.50 ct - Quartz - Pear
34.90 ct - Diopside - Cushion
V S
6.40 ct - Sapphire - Marquise
4.20 ct - Ruby - Marquise
V S
1.10 ct - Aquamarine - Emerald
4.50 ct - Sinhalite - Oval
V S
8.10 ct - Emerald - Princess
10.50 ct - Kunzite - Oval
V S
12.90 ct - Tanzanite - Baguette
19.60 ct - Morganite - Pear
V S
10.40 ct - Kunzite - Oval
18.40 ct - Kyanite - Oval
V S
18.70 ct - Kyanite - Oval
24.60 ct - Fluorite - Emerald
V S
22.70 ct - Alexandrite - Round
29.30 ct - Diamond - Round
V S
24.10 ct - Aquamarine - Princess
28.20 ct - Aquamarine - Baguette
V S
25.60 ct - Citrine - Oval
33.00 ct - Diamond - Princess
V S
33.10 ct - Ruby - Emerald
31.90 ct - Amethyst - Round
V S
33.20 ct - Peridot - Emerald
36.50 ct - Quartz - Pear
V S
34.90 ct - Diopside - Cushion
2.20 ct - Marquise- Diamond
3.40 ct - Marquise- Diamond
2.70 ct - Oval- Diamond
7.30 ct - Oval- Diamond
6.60 ct - Emerald- Diamond
2.10 ct - Marquise- Diamond
14.80 ct - Princess- Diamond
12.50 ct - Round- Diamond
10.50 ct - Emerald- Diamond
15.90 ct - Trillion- Diamond
10.90 ct - Cushion- Diamond
10.00 ct - Oval- Diamond
21.90 ct - Baguette- Diamond
20.80 ct - Pear- Diamond
21.80 ct - Cushion- Diamond
24.20 ct - Trillion- Diamond
24.50 ct - Round- Diamond
27.20 ct - Emerald- Diamond
35.30 ct - Pear- Diamond
35.70 ct - Oval- Diamond
39.00 ct - Trillion- Diamond
33.70 ct - Round- Diamond
32.80 ct - Oval- Diamond
39.60 ct - Princess- Diamond
V S
3.40 ct - Marquise- Diamond
2.70 ct - Oval- Diamond
V S
7.30 ct - Oval- Diamond
6.60 ct - Emerald- Diamond
V S
2.10 ct - Marquise- Diamond
14.80 ct - Princess- Diamond
V S
12.50 ct - Round- Diamond
10.50 ct - Emerald- Diamond
V S
15.90 ct - Trillion- Diamond
10.90 ct - Cushion- Diamond
V S
10.00 ct - Oval- Diamond
21.90 ct - Baguette- Diamond
V S
20.80 ct - Pear- Diamond
21.80 ct - Cushion- Diamond
V S
24.20 ct - Trillion- Diamond
24.50 ct - Round- Diamond
V S
27.20 ct - Emerald- Diamond
35.30 ct - Pear- Diamond
V S
35.70 ct - Oval- Diamond
39.00 ct - Trillion- Diamond
V S
33.70 ct - Round- Diamond
32.80 ct - Oval- Diamond
V S
39.60 ct - Princess- Diamond