Source for (Colored) heat treated diamonds

Hi all, Does anyone have a source for companies that sell heat treated
diamonds? Particularly red in small dimensions. Thank you, Ed Dawson

Check with Ettienne Peret, who posts on this forum from time to time.
I think he was selling colored diamonds. I know he’s been using them
in a lot of his designs as of late and he might be willing to share
his source if he isn’t selling them himself.

David L. Huffman