Some exciting (for the target audience) background story, quality images (can someone model the bijutere for him esp in real life env - club, cafe, shopping centre?), simple to navigate yet slick e-commerce platform and soc med ie insta, pinterest etc networking I suppose should do the trick.
PS make sure he keeps his 'business' soc med separate, do some research to see what other do, and identify and try to engage with established 'influencers' to piggyback on their traffic.