Brilliant Earth

Brilliant Earth carries one of the larger online eternity ring ranges, with styles going from simple shared-prong rounds to baguette-set bands and gemstone options in sapphire and ruby. Both mined and lab-grown diamonds are available across the same settings, so you can compare directly within a style rather than choosing the stone type first.

All material is traced through the supply chain, and the site documents sourcing policies in reasonable detail. International shipping to Switzerland is available. Returns and resizing are handled through the website, which makes sizing adjustments easier than with many boutique purchases.