Benitoite (21.60 Carat )

15.43 x 15.43 mm
Stone Type : | Benitoite |
Stone Shape : | Princess |
Stone Weight : | 21.60 carat |
Length X Width : | 15.43 x 15.43 mm |
Length / Width Ratio : | 1.00 |
Approx Face-up Area : | 238.18 mm² |
Approx Volume : | 1,183.42 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 : | Princess |
Chemical Formula : | BaTiSi3O9 |
Crystal Structure : | Hexagonal |
Hardness : | 6 - 6.5 |
Specific Gravity : | 3.65 |
Carat weight : | 21.60 carat |
Gram weight : | 4.320 gm |
Ounces weight : | 0.1524 ounces |
Length : | 15.43 mm |
Width : | 15.43 mm |
Length / Width Ratio : | 1.00 |
Average diameter : | 15.43 mm |
Approx Face-up Area : | 238.18 mm² |
Approx Volume : | 1,183.42 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
3.50 ct - Princess - Benitoite
5.80 ct - Princess - Benitoite
9.30 ct - Princess - Benitoite
11.70 ct - Princess - Benitoite
11.90 ct - Princess - Benitoite
19.00 ct - Princess - Benitoite
22.90 ct - Princess - Benitoite
24.50 ct - Princess - Benitoite
29.00 ct - Princess - Benitoite
34.20 ct - Princess - Benitoite
32.90 ct - Princess - Benitoite
38.10 ct - Princess - Benitoite
5.80 ct - Princess - Benitoite
9.30 ct - Princess - Benitoite
11.70 ct - Princess - Benitoite
11.90 ct - Princess - Benitoite
19.00 ct - Princess - Benitoite
22.90 ct - Princess - Benitoite
24.50 ct - Princess - Benitoite
29.00 ct - Princess - Benitoite
34.20 ct - Princess - Benitoite
32.90 ct - Princess - Benitoite
38.10 ct - Princess - Benitoite
4.90 ct - Alexandrite - Pear
7.60 ct - Alexandrite - Trillion
6.60 ct - Citrine - Round
4.50 ct - Apatite - Pear
1.10 ct - Benitoite - Marquise
7.00 ct - Benitoite - Trillion
14.20 ct - Emerald - Cushion
15.80 ct - Diamond - Marquise
17.80 ct - Peridot - Baguette
18.40 ct - Apatite - Oval
11.30 ct - Sinhalite - Cushion
13.60 ct - Tanzanite - Cushion
29.50 ct - Emerald - Pear
24.80 ct - Fluorite - Pear
24.50 ct - Sapphire - Baguette
27.00 ct - Diopside - Cushion
30.00 ct - Aquamarine - Baguette
24.00 ct - Chrysoberyl - Baguette
37.50 ct - Citrine - Baguette
30.30 ct - Emerald - Trillion
33.60 ct - Sapphire - Trillion
38.50 ct - Emerald - Princess
37.80 ct - Alexandrite - Cushion
36.90 ct - Citrine - Marquise
V S
7.60 ct - Alexandrite - Trillion
6.60 ct - Citrine - Round
V S
4.50 ct - Apatite - Pear
1.10 ct - Benitoite - Marquise
V S
7.00 ct - Benitoite - Trillion
14.20 ct - Emerald - Cushion
V S
15.80 ct - Diamond - Marquise
17.80 ct - Peridot - Baguette
V S
18.40 ct - Apatite - Oval
11.30 ct - Sinhalite - Cushion
V S
13.60 ct - Tanzanite - Cushion
29.50 ct - Emerald - Pear
V S
24.80 ct - Fluorite - Pear
24.50 ct - Sapphire - Baguette
V S
27.00 ct - Diopside - Cushion
30.00 ct - Aquamarine - Baguette
V S
24.00 ct - Chrysoberyl - Baguette
37.50 ct - Citrine - Baguette
V S
30.30 ct - Emerald - Trillion
33.60 ct - Sapphire - Trillion
V S
38.50 ct - Emerald - Princess
37.80 ct - Alexandrite - Cushion
V S
36.90 ct - Citrine - Marquise
3.20 ct - Trillion- Diamond
4.90 ct - Emerald- Diamond
8.80 ct - Emerald- Diamond
0.80 ct - Cushion- Diamond
3.40 ct - Pear- Diamond
0.80 ct - Marquise- Diamond
19.20 ct - Trillion- Diamond
18.40 ct - Cushion- Diamond
18.50 ct - Princess- Diamond
15.40 ct - Emerald- Diamond
14.90 ct - Trillion- Diamond
11.60 ct - Trillion- Diamond
21.70 ct - Cushion- Diamond
21.10 ct - Princess- Diamond
21.40 ct - Emerald- Diamond
24.60 ct - Cushion- Diamond
26.10 ct - Emerald- Diamond
20.20 ct - Marquise- Diamond
38.80 ct - Round- Diamond
35.40 ct - Round- Diamond
30.30 ct - Marquise- Diamond
37.50 ct - Baguette- Diamond
39.10 ct - Princess- Diamond
32.20 ct - Princess- Diamond
V S
4.90 ct - Emerald- Diamond
8.80 ct - Emerald- Diamond
V S
0.80 ct - Cushion- Diamond
3.40 ct - Pear- Diamond
V S
0.80 ct - Marquise- Diamond
19.20 ct - Trillion- Diamond
V S
18.40 ct - Cushion- Diamond
18.50 ct - Princess- Diamond
V S
15.40 ct - Emerald- Diamond
14.90 ct - Trillion- Diamond
V S
11.60 ct - Trillion- Diamond
21.70 ct - Cushion- Diamond
V S
21.10 ct - Princess- Diamond
21.40 ct - Emerald- Diamond
V S
24.60 ct - Cushion- Diamond
26.10 ct - Emerald- Diamond
V S
20.20 ct - Marquise- Diamond
38.80 ct - Round- Diamond
V S
35.40 ct - Round- Diamond
30.30 ct - Marquise- Diamond
V S
37.50 ct - Baguette- Diamond
39.10 ct - Princess- Diamond
V S
32.20 ct - Princess- Diamond