Imperial Flare Ruby

From the Latin imperialis, of the empire — applied to color since the medieval period for the hues reserved for sovereigns and empires: imperial purple of Tyrian dye, imperial yellow of Ming-dynasty porcelain. As a modifier, imperial implies saturation combined with the institutional weight of a color owned by a court. Sits in the bold-and-deep corner, alongside royal.

Origin obscure, attested c. 1540, to-burn-with-an-unsteady-flame. As a color modifier, flare implies a sudden-and-spreading-and-bright-burst quality, the visual register of signal-flare-and-solar-flare hand-sudden-and-spreading-and-bright-burst signal-flare-and-solar-flare-and-magnesium-distress flared-and-sudden-and-spreading-and-bright surfaces under signal-flare-and-solar-flare-and-magnesium-distress shipboard-and-rescue-and-corona high-intensity-light. Sits at the modifier-and-mood end of the grid, parallel to blaze and flash in usage.

From the Latin ruber — simply, red. The gemstone is a chromium-tinged corundum, harder than anything in nature except diamond, and so saturated that a fine Burmese pigeon's blood ruby at auction outpaces a comparable diamond by weight. The color borrows the gem's confidence: a clear, glassy red without the brown of garnet or the blue of crimson.