He says gold-selling traffic at his 5th Avenue location in New York City has more than tripled as gold has surged 17% off its 2024 low in February to now trade near $2,400 an ounce.

While some just want to take advantage of the price surge, others are compelled by price inflation that's put them in a financial bind. "Prices are high, and I need cash," 30-year-old IT specialist Branden Sabino tells Bloomberg, citing the burden of higher prices for food, rent and car insurance. A 55-year-old woman said she needed the money to pay for gas.

Most are selling jewelry, including many offloading inherited items with sentimental value that's now apparently eclipsed by all-time highs in gold. House of Kahn Estate Jewelers' Tobina Kahn says younger Americans' fashion sensibilities are also a factor:

"Young people are not wearing grandma's jewels. Most of the young people, they want an Apple watch. They don't want a pocket watch. Sentimental is now out the door."    

Of course, there are of plenty of gold-buyers in America too. Costco, which began selling one-ounce bars in October, is selling $100 to $200 million worth every month, according to a Wells Fargo estimate.

CNBC's analysis suggests the retailer is pricing the bars at 2% above the spot price. If you're an "executive member," you get a 2% reward, and those who use their Citigroup credit cards will receive 2% on top.

The pawnshop gold-sellers may wish they'd waited longer before parting with their rings and necklaces. Bank of America commodities strategist Michael Widmer is calling for gold to hit $3,000 by 2025 — a roughly 25% advance from current levels. UBS foresees gold at "more than $4,000" within two to three years.