Singer Rihanna spotted wearing a Jacob & Co

At Paramount Pictures' CinemaCon presentation in Las Vegas, Rihanna appeared on the red carpet wearing what is arguably one of the most technically demanding bracelet watches in current production: the Jacob & Co Boutique Collection 'Ashoka' in 18k white gold. The piece drew immediate attention against her oversized denim look, the sapphire blue stones catching the step-and-repeat lighting with unusual intensity.

The 'Ashoka' watch takes its name from the Ashoka diamond cut, a proprietary 62-facet elongated cushion form originally developed by the William Goldberg Diamond Corporation and inspired by a gem discovered in India centuries ago. Jacob & Co incorporates this exclusive cut into both the dial surround and the integrated bracelet, resulting in a piece with no standard gemstone in sight. This specific configuration features 38 Ashoka-cut blue sapphires arranged in a central channel down the bracelet and bezel flanks, flanked by 24 Ashoka-cut white diamonds and 76 brilliant-cut diamonds providing structural sparkle across the entire surface. The rectangular case houses a fully diamond-set dial, with blue-tipped hands as the sole chromatic reference to the sapphires framing the case — a subtle and deliberate design decision.

From a horological standpoint, the movement is secondary to the gem-setting achievement here. The true technical feat lies in the lapidary work: matching 38 Ashoka-cut sapphires for color saturation uniformity across a flexible bracelet is an undertaking that few ateliers globally can execute. Jacob & Co's New York and Geneva workshops invest hundreds of hours in stone selection and setting alone for pieces at this tier.

Collector significance is considerable. Jacob & Co boutique-level jewelry watches occupy a distinct niche — they compete not with Patek or Rolex, but with Van Cleef & Arpels and Graff in the jewelry watch category. Secondary market liquidity is limited given the bespoke nature of each piece, but private treaty sales among UHNW collectors sustain strong valuations.

For Rihanna, whose Fenty Beauty and Savage X Fenty empire has made her a billionaire entrepreneur, wearing a $480,000 watch casually against raw denim is a coherent personal statement. The Jacob & Co Boutique Collection 'Ashoka' at retail $480,000 has no known grey-market equivalent given its one-of-a-kind boutique status.