The Many Uses of Diamond October 11, 2011 | Geology.com Diamond is the world's most popular gemstones and it's qualities as the hardest natural substance... HPHT “Fancy” Diamonds January 2, 2011 | Times of India The popularity of fancy diamonds (those with an attractive face-up color such as yellow, red,... Diamonds Don’t Form From Coal! January 20, 2011 | The widespread belief that Earth's diamond deposits were formed when coal was subjected to high... Ending the Diamond Slump in Australia? March 2, 2012 | Business Insider Low diamond prices and a strong Australian dollar have caused problems for the Australian diamond... |