2.5 Carat Benitoite (Oval, 10.73×7.15mm, Blue)
Color:
Actual size is set for screen
How big is a 2.5 carat oval-cut Benitoite?
It depends on the cut parameters and length-to-width ratio, but a typical size of a 2.5ct oval-cut Benitoite would be around 10.73×7.15 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:
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Ring width:
3.0 mm
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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 |
43 % |
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Saved...
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Ring diameter:
16.9 mm
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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
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Name:
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Benitoite |
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Shape:
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Oval |
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Chemical Formula:
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BaTiSi3O9 |
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Crystal Structure:
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Hexagonal |
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Hardness:
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6 - 6.5 |
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Specific Gravity
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3.65 |
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Carat weight:
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2.5 ct |
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Gram weight:
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0.5 g (0.0176 ounces) |
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Points:
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250 pts |
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Length:
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10.73 mm |
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Width:
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7.15 mm |
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Est. face-up size:
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62.91 mm² |
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Volume:
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136.99 mm³ |
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Length-to-width ratio:
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1.5 |
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Refractive Index:
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1.75-1.80 |
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Luster:
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Vitreous |
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Wearability:
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|
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Care Instructions:
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Color:
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Benitoite can be found in the following colors:
  
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Birthstone:
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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.