You may have noticed that egg yolks can have different shades, from a pale yellow to an intense orange. But what causes this color variation? And does the color of the yolk influence the quality or ...

Warm colors — including reds, oranges and yellows — evoke feelings of energy, passion and warmth. Warm and cool colors play ...

GIA’s laboratories use advanced instrumentation and research to deliver accurate grading, identification, and origin ...