Even if you got money for jewelry why pick the boring pointy piece of glass? There are gems and materials so much cooler than diamonds. My personal favourite is jade.
It depends on a lot of things. Something self-hosted would just cost the power and Internet you are already paying for but if you’re renting the hosting and maybe even get development for your site it could cost a ton.
Countries really shouldn’t have extradition treaties with the US considering the US refuses to work with the international criminal court and they’ll have like the worst anti whistle-blower laws combined with some of the worst prisons.
Assange should be charged with whatever crimes he committed in his country not in the US.