royal blue

  • Describing Color in Gems | A Fool's Guide

    • City: Tucson, AZ (USA)
    • Date: 02-06-2025
    Describing Color in Gems | A Fool's Guide

    Color types such as "pigeon's blood," "cobalt blue" and "Santa Maria" are wildly popular, but also wildly inconsistent.

  • Describing Color in Gems | A Fool's Guide

    • City: Bangkok
    • Date: 09-09-2025
    Describing Color in Gems | A Fool's Guide

    Color types such as "pigeon's blood," "cobalt blue" and "Santa Maria" are wildly popular, but also wildly inconsistent. Richard Hughes takes a deep dive into the problems of describing color.

  • Describing Color in Gems | A Fool's Guide

    • City: Thun, Switzerland
    • Date: 06-22-2026
    Describing Color in Gems | A Fool's Guide

    Color types such as "pigeon's blood," "cobalt blue" and "Santa Maria" are wildly popular, but also wildly inconsistent.