What are the birthstones for each of the twelve months? Where do they come from? What are their characteristics? Do they have any special attributes or care considerations? These questions and more will be addressed in "A Year of Birthstones."
Where have diamonds been mined? What is the oldest source? Which diamonds are the biggest? Who has owned these fabulous gems? Can diamonds be colored? Get answers to these questions and a glimpse into the history and mystique of the diamond.
Phenomenal gems are those that present an unusual optical effect. Learn what sorts of phenomena, like color-change and cat's-eye, are possible; which gems may display these effects and what criteria are used to judge the quality of a phenomenal gem.