Blake Lively shimmered in a mermaid-like blue dress to attend a star-studded party at Tiffany & Co.’s NYC flagship store Thursday night — and she brought out some serious bling for the event.

The style set came together to celebrate the Tiffany & Co. high jewellery collection, and the evening saw a strong focus on the brand's craftsmanship and legacy. Named 'Blue Book 2025: Sea of ...

Tiffany's half-sister Ivanka was one of several bridesmaids, and they all wore various blue grecian-style gowns that looked beautiful. WATCH: Melania and Donald Trump unveil Christmas decorations ...