De beers have just announced a 5% price rise for rough diamonds.

De Beers raises overall rough prices by 5% for SI+  goods, with rough yielding  1ct+  SI  polished  increased  by  10-15%  and 0.20ct+
Rough diamond prices have been steadily increasing due to demand and supply pressures.
This keeps the industry healthy, consumers knowing that diamonds they purchase today will be cheap tomorrow.