What A Real Diamond Looks Like

In the chart below you ll find common diamond look alike stones and real diamonds arranged by specific.
What a real diamond looks like. If the fog dissipates right away the diamond is real. Most diamonds are set in a precious metal like gold or platinum. If you want to make your diamond look bigger either set your diamond with side stones or with a halo says landau. For you to go through with the scratch test you need a plate glass and a loose diamond.
Similarly if the setting looks sloppy or like poor quality craftsmanship the diamond may not be particularly valuable. Something like a scratch test could help you determine if the diamond under the question is in fact real. For the fog test hold the diamond or ring between two fingers and breath on it with a puff of air. Place the glass on a table or any platform and use your diamond to scratch the surface of the glass.
A light fog will form on the diamond because of the moisture and heat in your breath. Diamonds and their simulants can share some optical and physical properties. A halo is like a push up bra for a diamond it ll make the stone look a carat to a carat and a half larger than it actually is. If the stone s mounting appears to be plated or is only a semi precious metal like copper or aluminum the diamond itself may be fake.