How petite should an engagement ring be?
In my professional opinion, the shank or ring portion of a ring should never be narrower than 1.7mm. It doesn’t matter if the shank has diamonds on it or not. 1.7mm is a very petite shank and anything narrower than 1.7mm can cause problems. When the shank becomes too thin, it can bend out of shape and go out of round. If the shank has diamonds on it and goes out of round, the diamonds on the shank can and will fall off.
Two Petite Engagement Rings Side by Side
Both of these engagement rings are considered petite engagement rings. The ring pictured with the oval center stone has a 1.7mm shank. The picture with the round center has a 2.0mm shank. Both of these engagement rings are considered petite engagement rings. The difference in width is only 0.3mm.
Both of these petite rings are very popular. When purchasing a petite engagement ring make sure you ask yourself if you are hard on your hands. If you are hard on your hands, consider a slightly larger engagement ring. You want the ring to last a lifetime and the narrower the ring is the easier the ring can bend out of shape.