I am sure you can find a few.
REEDS Jewelers is one shop I found without any problems:
https://www.reeds.com/bitcoin.htmlGray & Sons Jewelers in Miami also accepts Bitcoin:
https://www.grayandsons.com/bitcoinThere is also a merchant in New York called Since1910:
https://www.since1910.com/bitcoinYou can find a list of jewelry merchants that accept crypto on BitPay's site. Although I wouldn't suggest using that payment processor but that's a different story:
https://bitpay.com/directory/jewelry-watches/Google it. That's the easiest way to find what you are looking for. Try "
buy jewelry for bitcoin USA" or a more specific key phrase that corresponds more to your geographical location. You can even check with local shops if they are willing to take bitcoin. Even if they aren't advertising it over official channels, they might be interested.