Program aims to educate young consumers about mined stones’ positive qualities.
Jewel beats $150,000 top estimate, raking in $2.2 million in New York.
Piece sells for $597,000 against its $180,000 upper price.
Piece gets $3 million price tag at June 12 New York auction.
Ring brings in $1.2 million at May 23 auction.
Star of show was 35-carat Leviev diamond ring that fetched $2.7 million.