A 925 ring can be higher than diamonds but the 925 is on the silver side. It is harder than a 925 ring and the silver is one of the silver types.
Some 925 sterling silver rings are equipped with different marking, that is why the 925 wedding ring is made from different silver such as gold or silver. It is 925 sterling silver or gold rings and the 925 silver bands can be combined with other silver to create a unique look.
It is less common than an authentic diamond to be raised on sterling silver.
925 silver rings for engagement and 925 silver wedding rings can be found at Alibaba.com.