Program aims to educate young consumers about mined stones’ positive qualities.
Result is highest per-carat figure in more than two years.
Miner cites lack of high-quality supply as reason for nixing sale.
Revenue up 20% from last sale in December 2022.
Sale fetches highest-ever revenue, average price and price per carat for a single lot.
Miner believes it will achieve the highest price for a single emerald piece the company has ever sold, it said.
Colored-stone miner returned to normal auction schedule in first half of 2022.