As it turned out, Christian McCaffrey hadn't brushed off ring shopping like he led his then-girlfriend, Oliva Culpo, to believe. The pro-athlete was actually working closely with Ring Concierge, a luxury New York City-based jewelry brand that prides itself on being "committed to designing for women, by women," per their website, long before he proposed. Nicole Wegman, the company's founder and CEO, detailed to PopSugar how Ring Concierge and McCaffrey created a piece "that encompassed Olivia's trendsetting style while still remaining timeless." 

While Culpo thought he wasn't paying attention, the footballer may have been taking notes. Wegman continued, "Christian knew Olivia loves ovals, so we selected this perfectly cut beauty to craft her ring around." Indeed, the main feature of her considerable sparkler is an oval-cut diamond placed atop a delicate band crafted from gold and platinum and complemented by Epaulette side stones. Experts informed Page Six that the stunning accessory could be anywhere from five to eight carats and worth as much as $600,000.

In the Instagram announcement of her engagement, captioned simply, "♾️4.2.23♾️," Culpo gave fans a closer look at her eye-catching ring. Later on, in her Stories, the retired pageant queen wrote, "We tried to keep this quiet for as long as possible but apparently word travels fast. I'm marrying my best friend. I love you so much, fiancé," (via Page Six).