Jennifer Lopez wears $53,000 earrings for date night with Ben Affleck

Las Vegas is the ultimate celebrity hotspot this weekend. Hollywood's best-dressed A-list stars descended on Sin City for two major events starting Thursday night, leaving fans with plenty of top looks to analyze.

First up, Rihanna and Paris Hilton hit the Las Vegas Strip in their best luxe leather outfits for the highly anticipated Formula 1 Grand Prix. Between qualifying rounds, Jennifer Lopez and Ben Affleck headed to LAVO Restaurant and Nightclub at the Venetian Resort for a friendly game.

The resulting costume is what we're talking about here.

a sultry night

Ahead of hosting a poker tournament for Affleck's nonprofit East Congo Project, the ever-stylish Bennifer hit the red carpet alongside celebrities including Jimmy Kimmel and Cara Delevingne.

As this was the first official kick-off of the weekend's F1 festivities, the power couple pulled out all the stops in equally stylish outfits. The "Getting Out" actor wore a royal blue three-piece suit paired with a classic white button-down shirt.

However, J.Lo took a slightly sultry route at Friday night's soirée.

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J.Lo's crystal-embellished gown

After posing for photographers with her husband and the night's co-host, Lopez took a closer look at her OOTN, a crystal-covered gown from David Koma.

This dress is perfect for a date night in Las Vegas because it's gorgeous and playful at the same time. It included a thigh-high slit that offered a glimpse of Lopez's heels, which were lace-up platforms by Andrea Wazen.

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That's certainly not the only eye-catching detail - J.Lo's night out outfit also featured a risqué cutout that stretched from her neck to her hips, revealing a sizable amount of her torso.

She's worn this before

Clearly, the fashion muse knows what dress she wants, because earlier this year, she wore a metallic gown with an almost identical silhouette to celebrate her shoe collection with Revolve.

The foil-covered number contained all the key markers of her recent work: cutout placement, bold slits and one-shoulder features. Aside from the reflective fabric and eye-catching accessories, the look is nearly identical.

Courtesy Jason Sean Weiss/BFA/Revolve

her cold accent

That said, J.Lo's David Koma floor-grazing number certainly had its share of glitz. The singer never misses a show-stopping gem (or two), though for this event, Lopez relied on her sparkling gown to do just that.

Although her accessories were light, Lopez opted to brighten up her black ensemble with a unique pair of earrings. The 10.9-carat Reza diamond earrings retail for over $53,000.

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Don't let her looks fool you—she's still the Jenny from the block.