Amal Clooney sparkled in gold sequins in London on Monday night. WireImage Amal Clooney loves a vintage moment. Especially when it sparkles. The lawyer was spotted at The King’s Trust 50th Anniversary Celebration at Royal Albert Hall in London Monday, wearing a golden sequin Alexander McQueen gown that caught every angle of light from the flashing bulbs. Clooney, 48, paired the metallic look with Cartier Juste un Clou double hoop earrings ($14,600) — and she tripled-down on the gold with metallic pointed-heel pumps. The dress originally debuted on the runway as part of the fall/winter 2007 “In Memory of Elizabeth Howe, Salem, 1692” collection, which was inspired by the persecution of women, harkening back to the Salem Witch Trials (and McQueen’s own ancestor Elizabeth Howe) — a theme that the human rights lawyer certainly keeps close to heart. She chose the very same 2007 Alexander McQueen gown worn by Cameron Diaz almost 20 years ago.…