Adamant Pisces Sapphire

Greek adámas, unconquerable — derived from a- (not) plus damnan (to subdue). As a color modifier, adamant implies a saturated-and-rock-hard quality where the hue maintains diamond-hard pigmentation. Sits at the bold-and-resilient end of the grid, parallel to indomitable and ironclad in usage.

Latin pisces, fishes-of-the-zodiac. As a color modifier, pisces implies a two-fishes-and-water-sign-and-Jupiter-Neptune-ruled-mutable-water quality, the visual register of Hellenic-Pisces-and-Aphrodite-Eros-fishes hand-two-fishes-and-water-sign-and-Jupiter-Neptune-ruled-mutable-water Hellenic-Pisces-and-Aphrodite-Eros-fishes-and-Ichthys pisces-and-two-fishes-and-water-sign surfaces under Hellenic-Pisces-and-Aphrodite-Eros-fishes-and-Ichthys late-winter-and-February-and-March-into-April mutable-water-sign-light. Sits at the modifier-and-zodiac end of the grid, parallel to aquarius and aries in usage.

An iron-and-titanium-bearing corundum — the same mineral as ruby, hardness 9 on the Mohs scale, mined for two millennia from Sri Lanka, Burma, Madagascar, and the Cashmere mines of British India. The color refers to a fine Kashmir-cut sapphire: a saturated, slightly violet-shifted deep blue with the gem's signature internal velvet — a quality of light scattering in the stone that faceted glass cannot replicate. Cooler than cobalt, deeper than azure.