For now we only accept payments from your wallet with USDC or ETH and using credit or debit card through WERT.io

You need to own a crypto wallet and hence an ethereum crypto address so we are able to deposit your NFT in it.

For us to be viable we need at least 50% of the total supply to be preordered, refunding the clients otherwise.

You can go to a jeweller with the diamond and the GIA certificate and negotiate a price with him. The final NFT will be soulbound to you after shipping, so it's not transferable after this step.

Absolutely, your preorder NFT is valid to be traded openly on Opensea

When the project goes live your preorder NFT will be redeemable for your final Keras NFT

The QR code inside the box is only unlockable by the wallet that requested shipping. We might allow a secondary wallet to unlock the NFT if enough demand appears for a gift-mode

Nope, it's your personal vault, we can't withdraw from it.