From brilliant blues to fiery reds, discover how nature crafts diamonds in every color, and why some shades are rarer than ...

“Diamonds are a girl’s best friend ... we explore the difference between precious and semi-precious gems and understand these eternal stones' types, cuts, and certifications.

Chalcedonies include many types of cryptocrystalline quartz ... There are a number of semiprecious gems, many quite beautiful, but diamonds, rubies, sapphires, and emeralds continue to qualify ...

along with complimentary ring resizing and polishing services. I tapped into my knowledge as a gem expert to pick the best lab-grown diamonds for any occasion.

A big, beautiful diamond. Sure, it catches light like no other gem, and it's the hardest material ... proton and neutron from scratch, using two types of quarks—up quarks and down quarks.

The Winston Red Diamond, one of the rarest gems in the world, is a stunning 2.33-carat red diamond displayed at the Smithsonian National Museum of Natural History.

He covers the scarcity and value of diamonds and uncut gems, and he describes how thieves ... A triangle pointing right which indicates this type of media can be played. Bryan Sobolewski was ...

The extremely rare, 10-carat Mediterranean Blue diamond could fetch a whopping $20 million at Sotheby's High Jewelry auction ...