How many carats is my diamond?

I am 15 years old and i just bought 2 diamond earrings from my friend. Assuming that they are real diamonds, how can i find out information such as carats and other stuff?How many carats is my diamond?
Well... A simple way of determining whether you've got a diamond on your hands is to try and scratch a glass surface with it. If it leaves a mark on the glass then chances are you've got a diamond



Secondly. A carat is exactly 0.2 grams, so you need to find a way to weigh JUST the diamonds. Divide the weight in grams by 0.2 and you'll have the carat value. Simply



0.2g = 1 carat

0.4g = 2 carat

0.6g = 3 carat

0.8g = 4 carat

1.0g = 5 carat

1.2g = 6 carat



And so on...How many carats is my diamond?
you should take your jewelry to a qualified jeweler or gemologist and allow them to test your diamonds.

if you don't want to do that have a look here -

www.imagesontheweb.net/education/is-my…How many carats is my diamond?
go to a jewelry store and ask the people who work there if its real and they'll tell you how many carats is it
yeah what dana said....if it is real