The world's most expensive color is ultramarine blue. Here's how it's made using traditional methods.

CAMBRIDGE, Mass. — The first blue pigment to hold its color was often prized over gold. The semi-precious stone lapis lazuli was ground into an iridescent pigment, sometimes called ultramarine, that ...

What makes the Lapis Lazuli so meaningful? The Lapis Lazuli is a special blue metamorphic rock that has been used for many healing purposes. Its shiny vibrant color makes it great for jewelry and ...

I've got a serious thing for cobalt-color lapis lazuli baubles, and I can't imagine anything more chic for your wedding day jewelry look. This Elsa Peretti for Tiffany & Co. necklace is my definition ...