Found A Diamond While Searching Rolls Of Canadian Pennies

Breathe on the stone in question.... if it fogs up.. it's fake.... if it doesn't that's good.

lay the stone in question either on newspaper/print or on a piece of paper with a dot.... (place it flat side down and pointed side up)

if you can read the newspaper or make out the dot in anyway it's a fake...

Finally you can take it to a jeweler but I would recommend taking it to a trusted source and NEVER letting the diamond out of your sight for obvious reasons

i keep forgetting to have it looked at I will try to today or tomorrow