Design a high-end digital NFT card showcasing a certified emerald from Brazil. The layout should combine elegance and tech aesthetics, with a sleek, futuristic frame. Center the emerald as a glowing 3D object (2.85 ct, vivid intense green, AAA+ clarity, pear shape), floating over a dark background with blockchain grid elements. Display key data as engraved text or holographic overlays: Serial: GEMA-03521-24BR, DNA Code: dXa58f92l9-vER-53Lk, Origin: Campos Verdes, Brazil, No treatment. Include Ethereum logo, Token ID: 0x83...fd8c, and verification: EtherScan. Issue Date: 2025-04-15. Signed by: Luciano Yata – Certified Geologist. Feel premium, secure, and traceable.