Here's what actually changes between 14kt and 18kt multitone gold jewelry: presence. The higher gold content in 18kt alloys pushes each tone further, creating deeper yellow, warmer rose, brighter white. This allows the contrast between zones to have more visual force.
Stone Story
The purple in amethyst sits inside the crystal, not on it. Iron impurities and natural irradiation during formation alter the quartz structure at the molecular level, producing a color that reads with and cannot be abraded or polished away.
Quality & Value
The intrinsic gold value of a 14kt multitone piece is identical to any other 14kt jewelry of equivalent weight, because karat purity, not color, has always determined the base material value of gold.
