Can a saphire pave eternity band, scratch and damage a Signed Pieces Raphael eternity band, if it sits next to it. Or is this unlikely? The saphire eternity has a three sided pave kind of setting, so I am assuming there will be contact, especially since the saphire pavee ring is NOT a signed pieces ring. Any input? Or is there no worries with saphires, because not as hard as diamonds?