This tapered gold band by Shaesby is a nice alternative to a traditional diamond wedding, eternity or even engagement ring. I could also see it being a unisex piece. The ring can be ordered in an array of yellow or white gold karats, with or without diamonds.
The combination seen here is 14k yellow gold with diamonds and sells for USD $1890. Without diamonds, it’s USD $1290.
There are several other pretty and unusual gold and stone (both precious and semi-precious) designs in the Cypress collection; you can see them here.

Love it.