Can someone please inform me what weight a pair of Natrelle brand (Inspira) moderate 330 cc silicone implants ACTUALLY weigh?

Here is the breakdown:Silicone Breast Implant Weight
1cc weighs 0.0375 oz.
To calculate the weight of silicone implants, use the following formula:
Weight for a set of 300cc breast implants
300cc x 2 = 600cc (for both implants)
600cc x 0.0375 = 22.5 oz.

To convert ounces into pounds, divide the total of 22.5 oz. by 16 (there are 16 ounces in 1 pound)
22.5 ÷ 16 = 1.40625 lbs. which can be rounded to 1.41 lbs.
Or basically one 300cc breast implant is less than a pound at .70 lbs. Hopefully that answers your question!