It's difficult to understand which pink diamond you're referencing, but yes, there are pink diamonds that are real diamonds. Pink diamonds are among some of the rarest and most valuable stones.
Half carat is the term used to measure the weight of the real diamond. A diamond's weight does not define or detract from the fact that the diamond is or is not a real diamond.
You can take your diamond to a local jeweler who can use a probe to help you figure out if the diamond is a real diamond.
a real diamond can scratch glass and if the diamond gets scratched it's fake
No, a simulant diamond is not a real diamond. It is a material that mimics the appearance of a diamond but is not made of the same physical and chemical properties as a natural diamond.
Take your black diamond to a jeweler and ask the jeweler to use the probe to verify that the diamond is a real diamond.
Yes.
Yes.
Not a real diamond, no.
a real diamond can cut glass, a fake diamond cant.
Take the diamond/item containing the diamond to a jewelry store, and ask if it's a real diamond
A real diamond is an allotrope of carbon, and as formed, is the hardest mineral on earth.
Take your diamond to a jeweler, who will use a probe to determine whether or not the stone is a real diamond.