Clutch bag hardware redesign

Our clutch bags are made of genuine marble cut 1 mm. We want the stone to shine and be the main event of the bag itself. The bags are already made and ready to be sold, however there are a few details that need perfecting and change. I’m very pleased with the overall product, but the hardware (chain and how the chain attaches to the clutch bags) needs perfecting.
It needs to be redesigned to have a stronger hold and handle the weight of the bag with things inside it.