Noam Bar Yochai / Frolick Jewelry

A ding here, a scratch there — bad for your car, but it's all good when it comes to these "Oroko" rings by London-based Israeli designer Noam Bar Yochai. Consisting of polymer and goldleaf in millefeuille layers, the rings were designed to wear away over the lifetime of the wearer, according to each owner's unique experience.

Bonus link: speaking of the passage of time, clockfaces are becoming a less common sight thanks to digital displays and the waning need for watches. Change that with this cute clock ring from California's Frolick Jewelry.

Even more jewellery:

• So Little Time Co. (Australia) - cute wood


• LLEV (Czech Republic) - black glass


• Claire Haines (UK) - fluid silver