Ultrahuman Rare is meant to be a luxury, artisan-crafted smart ring. The platinum version costs $2,200.

The Contrast Club brand uses the energy from a tiny nudge or touch to make earrings curl up or a bracelet wrap around the wrist.

I cover upmarket jewelry, timepieces & ethical, sustainable jewelry. This airy 18-karat rose gold and diamond filigree Morgan necklace from Verragio's Reverie collection ... [+] features the brand ...

The desert rose and dune rings are made of 18-karat gold “sourced from London ... Rare, the FAQ says, is a natural evolution toward jewelry becoming smart like everything else.