Oberturm

Oberturm is a watch and jewellery shop in the Aargau, with stores at Vordere Vorstadt 1 in Aarau and Neumarkt 2 in Brugg, both within reach of Zurich. Its 3D engagement-ring configurator lets you build a ring from home, choosing the profile, metal, stones, and engraving, and the shop quotes more than two million possible combinations. There are separate configurators for wedding rings as well.

The metals run from 9k, 14k, and 18k gold through platinum, palladium, titanium, and zirconium, in colours including yellow, white, rose, apricot, and caramel gold, and the shop offers Green Gold by Wassner for a more responsibly produced option. It also publishes guidance comparing lab-grown and natural diamonds. Booking, valuations, and engraving are handled in store, and the site is available in German, French, Italian, and English.