I found this on the side of the road. It has flat cracks in it too. What are the chances that it really is diamond
This Laser Can Help Verify the Source of a Diamond
HRD Antwerp - Can YOU identify which stone is a natural
Real vs Fake Diamonds: How to Tell if a Diamond is Real
Laser Diamond Numbers
Diamond - Wikipedia
How to Tell if a Diamond is Real or Fake - Complete Guide
Do Lab Diamonds Test As Real Diamonds: Three Tests To Know, 47% OFF
How to Read the GIA Laser Inscription on Your Diamond
How To Tell A Real Diamond - Astteria
How to Identify a Diamond is Real or Fake - The Caratlane