$721 at Blue Nile (Save $309) From delicate pendants to intricate diamond-studded chains, Blue Nile necklaces are designed to be eye-catching and treasured. A diamond necklace from Blue Nile is ...

$721 at Blue Nile (Save $309) From delicate pendants to intricate diamond-studded chains, Blue Nile necklaces are designed to be eye-catching and treasured. A diamond necklace from Blue Nile is ...

Smithsonian magazine has a staff of editors and researchers. Articles are written on a freelance basis. When staff positions are available, they are listed at the Institution's human resources Web ...

Sustainability means working to protect our natural resources for future generations. We understand that recycling is inherently good and is fundamental to a healthy environment and society.

A MYSTERIOUS diamond-laden necklace with possible links to a scandal that contributed to the downfall of Marie Antoinette, sold for 4.26 million francs (S$6.5 million) at an auction in Geneva ...

At close: November 8 at 3:00 PM EST ...

The stones exhibit a wide range of colors, typically pink to purple, violet to blue, and blue to green or yellowish green. Heat treatment of all but the green to yellowish green stones typically ...

In general, medium red and dark (orangy) red top-quality rubies are rhombohedral. Pinkish red and purplish red rubies, as well as pink, purple, and blue (often strongly color zoned) sapphires are, for ...