Henry Spencer

I was only 8 years old on July 20, 1969, when Neil Armstrong, 38-year-old commander of 'Apollo 11,' descended the cramped lunar module Eagle's ladder with hefty backpack and bulky spacesuit to become the first human on the moon.

The price of diamonds can vary greatly depending on size, cut, color, and other factors, including whether they have a history. But because of the rarity of blue boron diamonds, they often fetch more money than gems of similar quality.