The world of gemology is vast; with an array of obscure minerals and rare gems. For engagement rings and wedding bands, we suggest using super hard materials that won’t easily chip or break and assure a lifetime of confident wear.
Second to diamonds in hardness is the mineral corundum, which includes both sapphires and rubies. Further down the scale are beryls, such as aquamarine and emerald.
The Mohs Scale of mineral hardness is a list that ranks gems from hardest to softest, and it’s a helpful tool for deciding on the suitably of any given center stone: