Is a 1.5mm ring band too thin?

A 1.5mm band sits below the industry default of 1.8mm, and the difference is mostly about bend resistance over decades of wear. The narrower band can still hold a centre stone, but the metal flexes more under impact and wears thinner faster against doorframes, gym equipment and benchtops. Industry consensus puts 1.8mm as the safer minimum for an engagement ring worn every day, since anything under 1.5mm starts to bend with normal use. The trade-off is cosmetic: a 1.5mm band makes the centre stone read larger because there is less metal next to it, and it suits delicate hands better than the slightly heavier default.

Three scenarios make 1.5mm a sound choice. First, platinum or 18k white gold rather than 14k or rose gold, since the denser, stiffer metals hold their shape better at thin sections. Second, an office, studio or desk-based lifestyle where the band does not get knocked against hard surfaces constantly. Third, an acceptance that the ring will need a service every five to seven years, including a re-polish, a check of the head and possible re-tipping of the prongs. For anniversary pieces or occasional rings that come off for work, 1.5mm is fine. For full-time bridal wear under heavy hand use, step up to 1.8mm.