A world I am working on has reached a sort of material production singularity. Recent innovations in space mining, artificial intelligence, teleportation, and 3D-printing have allowed for devices known simply as Makers to produce any sort of material or structure by constructing it from the atomic level upwards.
My question is this: in a world where jewelry is no longer motivated by scarcity, what new factors would determine what kind of jewelry people wore, since everyone could make or acquire at low cost any sort of design made of any material.
I have thought that most societies would keep with tradition and use gold/platinum with jewels/diamonds, but for the purposes of this question, assume that they are no longer keeping with tradition, assume that that style has fallen out of fashion because of its long lasting trend.
Also, aside from the technological advancements listed in the introduction, please regard this world as a "future earth," with humans and not many other major lifestyle changes from modern day.