7 Carat Benitoite (Oval, 15.12×10.08mm, Blue)
Color:
Actual size is set for screen
How big is a 7 carat oval-cut Benitoite?
It depends on the cut parameters and length-to-width ratio, but a typical size of a 7ct oval-cut Benitoite would be around 15.12×10.08 mm (±6%). The lw ratio of this Benitoite is 1.5. See below how big it looks on a ring and finger.
Ring:
Skin tone:
|
Ring width:
3.0 mm
|
Saved...
64 mm
| Your settings | |
|---|---|
Ring |
Gold |
Skin tone |
Light |
Ring diameter |
16.9 mm |
Ring width |
3.0 mm |
Finger length |
64 mm |
Finger coverage |
60 % |
|
Saved...
|
|
|
Ring diameter:
16.9 mm
|
Additional Info
Benitoite is a very rare blue gem first discovered in San Benito, California (hence the name). Benitoite is California state’s official gem.
Where to buy?
For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Gem Details
|
Name:
|
Benitoite |
|
Shape:
|
Oval |
|
Chemical Formula:
|
BaTiSi3O9 |
|
Crystal Structure:
|
Hexagonal |
|
Hardness:
|
6 - 6.5 |
|
Specific Gravity
|
3.65 |
|
Carat weight:
|
7 ct |
|
Gram weight:
|
1.4 g (0.0494 ounces) |
|
Points:
|
700 pts |
|
Length:
|
15.12 mm |
|
Width:
|
10.08 mm |
|
Est. face-up size:
|
124.98 mm² |
|
Volume:
|
383.56 mm³ |
|
Length-to-width ratio:
|
1.5 |
|
Refractive Index:
|
1.75-1.80 |
|
Luster:
|
Vitreous |
|
Wearability:
|
|
|
Care Instructions:
|
|
|
Color:
|
Benitoite can be found in the following colors:
  
|
|
Birthstone:
|
Benitoite is not an official birthstone of any month |
Popular comparisons:
- 3ct Benitoite (Oval, Blue, 11.25 x 7.5) vs. 1ct Sapphire (Oval, Blue, 7.56 x 5.04)
- 2.8ct Benitoite (Oval, Blue, 11 x 7.33) vs. 2ct Sapphire (Oval, Blue, 9.53 x 6.35)
- 3.2ct Benitoite (Oval, Blue, 11.49 x 7.66) vs. 3ct Sapphire (Oval, Blue, 10.91 x 7.27)
- 3ct Benitoite (Oval, Blue, 11.25 x 7.5) vs. 1.5ct Diamond (Oval, White, 9.29 x 6.19)
- 1.09ct Benitoite (Oval, Blue, 8 x 4.5) vs. 0.75ct Diamond (Round, White, 5.91 x 5.91)
- 1ct Benitoite (Oval, Blue, 7.8 x 5.2) vs. 1ct Sapphire (Oval, Blue, 7.56 x 5.04)
- 0.56ct Benitoite (Oval, Dark Blue, 6.44 x 4.29) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 2ct Benitoite (Oval, Blue, 9.83 x 6.55) vs. 2ct Sapphire (Oval, Blue, 9.53 x 6.35)
Use the simulator on this page to play around with different ring and finger configurations.