GAUGED p.
Tested or measured by, or conformed to, a gauge. Gauged brick, brick molded, rubbed, or cut to an exact size and shape, for arches or ornamental work. -- Gauged mortar. See Gauge stuff, under Gauge, n.
GEM n.
A precious stone of any kind, as the ruby, emerald, topaz, sapphire, beryl, spinel, etc., especially when cut and polished for ornament; a jewel. Milton.