There is no fundamental change in the small diamond segment. The slowdown in the smaller sizes during the second half of last year is mainly cyclical – it is driven primarily by demand-supply dynamics.
It is a misconception that there is any fundamental change in consumer behavior. The prices are coming down to where they should be, and this is mainly because retailers have realized how large the margins of LGD manufacturers have been. They are now understanding the pricing dynamics for this category and are asking their suppliers why they are charging so much.
– Steven Lussier, Executive Vice-President, Marketing, De Beers Group
(2019-03-12, Source: The Diamond Loupe)