AS A SOUTH AFRICAN I BOUGHT FIVE PEACES ON A GOVERNMENT AUCTION AND HAD THEM DELIVERED TO MY AMERICAN SON. A JEWELER FRIEND OF HIS CLASSIFIED THE STONES AS VERY POOR QUALITY, THE END RESULT IS THAT MY SON IS RETURNING EVERY THING AND I WILL LOOSE MORE THAN 16% OF MY SO CALLED GOOD INVESTMENT. THEY ACTION THE PRODUCTS ALL OVER THE WORLD THAT IS BASED ON TERRIBLE GLA EVALUATIONS. THEY ARE GIVING THE USA A BAD NAME AND SHOULD BE CLOSED DOWN. BE WARNED! DR JOOP VENTER