Benitoite (39.60 Carat )

29.20 x 17.59 mm
Stone Type : | Benitoite |
Stone Shape : | Pear |
Stone Weight : | 39.60 carat |
Length X Width : | 29.20 x 17.59 mm |
Length / Width Ratio : | 1.66 |
Approx Face-up Area : | 374.97 mm² |
Approx Volume : | 2,169.61 mm³ |
How many Colors Available for Benitoite ?
White , Light Blue , Blue , Dark Blue ,




Benitoite is a very rare blue gem first discovered in San Benito, California (hence the name). Benitoite is California state’s official gem.
Name of Stone : | Benitoite |
Mineral : | Benitoite |
Shape : | Pear |
Chemical Formula : | BaTiSi3O9 |
Crystal Structure : | Hexagonal |
Hardness : | 6 - 6.5 |
Specific Gravity : | 3.65 |
Carat weight : | 39.60 carat |
Gram weight : | 7.920 gm |
Ounces weight : | 0.2794 ounces |
Length : | 29.20 mm |
Width : | 17.59 mm |
Length / Width Ratio : | 1.66 |
Average diameter : | 23.40 mm |
Approx Face-up Area : | 374.97 mm² |
Approx Volume : | 2,169.61 mm³ |
Refractive Index : | 1.75-1.80 |
Cleavage : | None |
Luster : | Vitreous |
Birefringence : | 0.047 |
Wearability : | N / A |
Birthstone : | Benitoite 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
Click here for More Information
9.10 ct - Pear - Benitoite
5.00 ct - Pear - Benitoite
4.50 ct - Pear - Benitoite
18.10 ct - Pear - Benitoite
10.30 ct - Pear - Benitoite
19.70 ct - Pear - Benitoite
29.80 ct - Pear - Benitoite
22.70 ct - Pear - Benitoite
27.00 ct - Pear - Benitoite
39.20 ct - Pear - Benitoite
34.00 ct - Pear - Benitoite
31.50 ct - Pear - Benitoite
5.00 ct - Pear - Benitoite
4.50 ct - Pear - Benitoite
18.10 ct - Pear - Benitoite
10.30 ct - Pear - Benitoite
19.70 ct - Pear - Benitoite
29.80 ct - Pear - Benitoite
22.70 ct - Pear - Benitoite
27.00 ct - Pear - Benitoite
39.20 ct - Pear - Benitoite
34.00 ct - Pear - Benitoite
31.50 ct - Pear - Benitoite
2.60 ct - Citrine - Marquise
0.70 ct - Quartz - Trillion
1.60 ct - Alexandrite - Marquise
7.50 ct - Apatite - Baguette
5.40 ct - Sapphire - Pear
3.00 ct - Citrine - Cushion
16.30 ct - Diamond - Baguette
18.10 ct - Fluorite - Marquise
10.00 ct - Diopside - Princess
13.30 ct - Ruby - Marquise
18.30 ct - Hiddenite - Cushion
16.90 ct - Tanzanite - Round
21.20 ct - Diamond - Emerald
29.90 ct - Quartz - Round
21.50 ct - Diamond - Round
29.40 ct - Quartz - Pear
28.60 ct - Diopside - Trillion
23.40 ct - Alexandrite - Cushion
34.90 ct - Hiddenite - Princess
39.90 ct - Diopside - Round
35.10 ct - Emerald - Cushion
37.40 ct - Sapphire - Round
32.50 ct - Hiddenite - Baguette
31.60 ct - Citrine - Cushion
V S
0.70 ct - Quartz - Trillion
1.60 ct - Alexandrite - Marquise
V S
7.50 ct - Apatite - Baguette
5.40 ct - Sapphire - Pear
V S
3.00 ct - Citrine - Cushion
16.30 ct - Diamond - Baguette
V S
18.10 ct - Fluorite - Marquise
10.00 ct - Diopside - Princess
V S
13.30 ct - Ruby - Marquise
18.30 ct - Hiddenite - Cushion
V S
16.90 ct - Tanzanite - Round
21.20 ct - Diamond - Emerald
V S
29.90 ct - Quartz - Round
21.50 ct - Diamond - Round
V S
29.40 ct - Quartz - Pear
28.60 ct - Diopside - Trillion
V S
23.40 ct - Alexandrite - Cushion
34.90 ct - Hiddenite - Princess
V S
39.90 ct - Diopside - Round
35.10 ct - Emerald - Cushion
V S
37.40 ct - Sapphire - Round
32.50 ct - Hiddenite - Baguette
V S
31.60 ct - Citrine - Cushion
5.10 ct - Oval- Diamond
3.30 ct - Round- Diamond
9.30 ct - Emerald- Diamond
7.40 ct - Baguette- Diamond
1.40 ct - Oval- Diamond
7.20 ct - Princess- Diamond
18.80 ct - Baguette- Diamond
17.20 ct - Baguette- Diamond
15.00 ct - Oval- Diamond
12.10 ct - Emerald- Diamond
11.40 ct - Trillion- Diamond
18.20 ct - Princess- Diamond
27.90 ct - Marquise- Diamond
21.10 ct - Baguette- Diamond
28.50 ct - Baguette- Diamond
23.00 ct - Baguette- Diamond
21.30 ct - Baguette- Diamond
20.50 ct - Cushion- Diamond
31.70 ct - Baguette- Diamond
31.40 ct - Cushion- Diamond
31.10 ct - Trillion- Diamond
31.00 ct - Marquise- Diamond
39.90 ct - Emerald- Diamond
38.70 ct - Pear- Diamond
V S
3.30 ct - Round- Diamond
9.30 ct - Emerald- Diamond
V S
7.40 ct - Baguette- Diamond
1.40 ct - Oval- Diamond
V S
7.20 ct - Princess- Diamond
18.80 ct - Baguette- Diamond
V S
17.20 ct - Baguette- Diamond
15.00 ct - Oval- Diamond
V S
12.10 ct - Emerald- Diamond
11.40 ct - Trillion- Diamond
V S
18.20 ct - Princess- Diamond
27.90 ct - Marquise- Diamond
V S
21.10 ct - Baguette- Diamond
28.50 ct - Baguette- Diamond
V S
23.00 ct - Baguette- Diamond
21.30 ct - Baguette- Diamond
V S
20.50 ct - Cushion- Diamond
31.70 ct - Baguette- Diamond
V S
31.40 ct - Cushion- Diamond
31.10 ct - Trillion- Diamond
V S
31.00 ct - Marquise- Diamond
39.90 ct - Emerald- Diamond
V S
38.70 ct - Pear- Diamond