Here comes the bride! Newlywed Allison Williams dons white shirt-dress and sleek topknot for Forevermark party in NYC

Newlywed Allison Williams donned a bridal white frock, teal heels, and a sleek topknot for Wednesday night's Forevermark Diamonds party in Manhattan's West Village.

The bizarre shirt-dress featuring a floral explosion on the bodice was likely selected by the 27-year-old ingénue's stylist Cristina Ehrlich.

The Girls starlet later shared a dramatic Instagram snap of herself trying on eight diamond rings from the diamond brand.

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White after Labor Day? Newlywed Allison Williams donned a bridal white frock, teal heels, and a sleek topknot for Wednesday night's Forevermark party in Manhattan's West Village

White after Labor Day? Newlywed Allison Williams donned a bridal white frock, teal heels, and a sleek topknot for Wednesday night's Forevermark party in Manhattan's West Village

Don't try to catch this bouquet! The bizarre shirt-dress featuring a floral explosion on the bodice was likely selected by the 27-year-old ingénue's stylist Cristina Ehrlich

Don't try to catch this bouquet! The bizarre shirt-dress featuring a floral explosion on the bodice was likely selected by the 27-year-old ingénue's stylist Cristina Ehrlich

Diamonds are a girl's best friend! The Girls starlet later shared a dramatic Instagram snap of herself trying on eight diamond rings from the diamond label

Diamonds are a girl's best friend! The Girls starlet later shared a dramatic Instagram snap of herself trying on eight diamond rings from the diamond label

Allison and her husband Ricky Van Veen recently returned from their 'heavenly' Italian honeymoon on the Amalfi coast.

Two-time Oscar winner Tom Hanks officiated the couple's lavish September 19 wedding at Brush Creek Ranch in Wyoming.

The CollegeHumor founder, 34, had predicted how his future son with Williams would react to his trendy undercut hairstyle.  

'I'm happy to be home!' Allison and her husband Ricky Van Veen recently returned from their 'heavenly' Italian honeymoon on the Amalfi coast 

'I'm happy to be home!' Allison and her husband Ricky Van Veen recently returned from their 'heavenly' Italian honeymoon on the Amalfi coast 

200 guests attended: Two-time Oscar winner Tom Hanks officiated the couple's lavish September 19 wedding at Brush Creek Ranch in Wyoming

200 guests attended: Two-time Oscar winner Tom Hanks officiated the couple's lavish September 19 wedding at Brush Creek Ranch in Wyoming

'Son, let me tell you about the 2010's': The CollegeHumor founder, 34, had predicted how his future son with Williams would react to his trendy undercut hairstyle

'Son, let me tell you about the 2010's': The CollegeHumor founder, 34, had predicted how his future son with Williams would react to his trendy undercut hairstyle

'"Dad, why are just the sides of your hair short in these wedding photos?" "Son, let me tell you about the 2010's,"' Van Veen joked on Twitter.

The Peter Pan Live actress will reprise her role as singer Marnie Michaels in the fifth season of Girls, which premieres February 21 on HBO.

Fans can expect the Yale grad's preppy character to reunite with her ex-boyfriend Charlie Dattolo (Christopher Abbott) yet again next season.

Ready for her solo: The Peter Pan Live actress will reprise her role as singer Marnie Michaels in the fifth season of Girls, which premieres February 21 on HBO

Ready for her solo: The Peter Pan Live actress will reprise her role as singer Marnie Michaels in the fifth season of Girls, which premieres February 21 on HBO

He's ba-ack! Fans can expect the Yale grad's preppy character to reunite with her ex-boyfriend Charlie Dattolo (Christopher Abbott) yet again next season (pictured June 3)

He's ba-ack! Fans can expect the Yale grad's preppy character to reunite with her ex-boyfriend Charlie Dattolo (Christopher Abbott) yet again next season (pictured June 3)

The fashionable soiree was in honour of the upcoming November 2 launch of Forevermark's campaign: 'It's a long journey to become the one.'

Also at Stephan Weiss Studio was Tony winner Nikki M. James wearing a green boatneck pencil dress with her Forevermark diamonds.

Lady Lovin' podcaster Lo Bosworth flashed her bra beneath an ultra-sheer top, which she paired with a leather jacket and fringed wrap skirt.  

The fashionable soiree was in honour of the upcoming November 2 launch of Forevermark's campaign: 'It's a long journey to become the one'

The fashionable soiree was in honour of the upcoming November 2 launch of Forevermark's campaign: 'It's a long journey to become the one'

Making them green with envy! Also at Stephan Weiss Studio was Tony winner Nikki M. James wearing an emerald boatneck pencil dress with her Forevermark diamonds

Making them green with envy! Also at Stephan Weiss Studio was Tony winner Nikki M. James wearing an emerald boatneck pencil dress with her Forevermark diamonds

Lord of the rings: Lady Lovin' podcaster Lo Bosworth flashed her bra beneath an ultra-sheer top, which she paired with a leather jacket and fringed wrap skirt

Lord of the rings: Lady Lovin' podcaster Lo Bosworth flashed her bra beneath an ultra-sheer top, which she paired with a leather jacket and fringed wrap skirt

Victoria's Secret Angel Lindsay Ellingson also donned diamonds with her plunging black belted jumpsuit and matching pumps.

The 30-year-old model sported red lipstick and had her blonde locks coiffed in subtle golden waves by Daniel Roldan. 

Onesie: Victoria's Secret Angel Lindsay Ellingson also donned diamonds with her plunging black belted jumpsuit and matching pumps

Onesie: Victoria's Secret Angel Lindsay Ellingson also donned diamonds with her plunging black belted jumpsuit and matching pumps

California girl: The 30-year-old model sported red lipstick and had her blonde locks coiffed in subtle golden waves by Daniel Roldan

California girl: The 30-year-old model sported red lipstick and had her blonde locks coiffed in subtle golden waves by Daniel Roldan

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