Most of my friends collect these diamonds to get free nfts so out of curiosity I started to collect them too. You can buy lots of cool nfts with diamonds and sell them for profit or keep them. The fastest way to collect diamonds is by referr3 people but first you need to collect 200 diamonds to get a referral link. I have only 10 diamonds so I will try to reach 200 diamonds to get a referral link.
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From @phoenixgold