What are diamonds?
What do you have?
Do you understand the difference?
So what are you trying to accomplish?
Hint: requires Recarboxylation
This route has similarities to your endeavor ISO sop for converting CBD powder to THC-A powder but deliberately doesn’t make the problem harder that it needs to be (as you have).
Closest you’re gonna get is pouring it into molds… Molding thca w heat or pressure into shapes
…maybe you got lucky and have D8 that is as viscous as @Cannabin was dealing with…