The Smithsonian’s National Museum of Natural History has acquired the 2.33-carat "Winston Red Diamond," as part of the “Winston Fancy Color Diamond Collection.” ...

Inside a lab in South Korea, a rainbow-colored glint caught the eye of a graduate student. This gleam is the product of ...

Two new expressions of the rainbow watch were introduced this month by LVMH brands Louis Vuitton and Zenith, and each adds a new interpretation of the concept.