When a spell consumes material components do they become apart of the final product?

@JeremyECrawford When a spell consumes material components do they become apart of the final product? e.g. Raise Dead requires a diamond. Does that diamond become apart of the target of the spell or is it consumed by the magic fueling the spell.

— Ezzard Eyethief (@EzzardEyethief) March 20, 2018

If casting a spell consumes a material component, that component is destroyed. #DnD https://t.co/1yOCr38M4A

— Jeremy Crawford (@JeremyECrawford) March 21, 2018