our %diamond = (
   'Koh-i-Noor'     => 186,   Cullinan         => 3106,
   Excelsior        => 995.2, 'Star of Africa' => 520.20,
   'Great Mogul'    => 793,   Orloff           => 300,
   "Idol's Eye"     => 70.2,  Regent           => 410,
   'Blue Hope'      => 45.52, Sancy            => 55,
   'Taylor-Burton'  => 69.42, Hortensia        => 20,
);