Conversation so far:
When was De Beers established?
De Beers diamond company was formed in 1888
What was De Beers?
De Beers Group is an international corporation that specialises in diamond exploration, diamond mining, diamond retail, diamond trading and industrial diamond manufacturing sectors
Did De Beers accomplish anything significant?
In 2018, De Beers became the first diamond company to announce that it would track its diamonds using blockchain technology, though this technology has not yet been rolled out.

Question: Did De Beers have any set backs or obstacles?
Self-contained rewrite: Did De Beers have any set backs or obstacles?