At the height of summer, thoughts turn to red, and we're not talking sunburns. July's birthstone is the ruby! Happy July birthday to all of you. What a gem you have!

Discover how white diamonds get their color and what makes them different from colorless and colored diamonds.

Learn how rubies form, which types exist around the world and how to style ruby jewelry.

Do diamonds glow? Some do! Explore fluorescence in diamonds to learn why a diamond glows, what it is, and things to consider. 

Raw Diamonds: From definition and identification to formation and symbolism, everything you need to know about rough, uncut diamonds.