A white diamond the size of a small egg has sold for $27.3 million. It measures 118 carats. Two telephone bidders competed at the Hong Kong auction in until one dropped out. Even though the gem was sold for less than its estimate, the price edged out the previous price record for a white diamond of $26.7 million. The flawless oval diamond, which was mined and cut two years ago, was discovered in southern Africa.