Program aims to educate young consumers about mined stones’ positive qualities.
Criticism comes after company places deposit under business rescue and states it will lay off workers.
Company intends to focus on higher-value stones at Cullinan, which are in greater demand during prolonged industry downturn.
Cost-reduction assessment could see company suspend further capital expenditure at the deposit.
Increased sales volume and stronger product mix, including 42-carat blue, drive rise.
Like-for-like down 20% in second quarter.
Stone is first of such color and magnitude found at the deposit in past five years.
Vivek Gadodia and Juan Kemp share role at helm of mining company.
Average value per carat down 13% in first fiscal quarter.
Miner launches rights issue to keep business afloat.
Hit comes amid lower overall prices and fewer goods on offer.