Branded antique jewelry surges as vintage diamond shortages tighten

Branded antique jewelry in the $5,000 to $25,000 range was a hot market, with 1-carat rounds in tight supply and 3-carat stones very hard to find, especially in long fancy shapes. Long cushions and marquises grew harder to find, tightening the supply of the vintage diamond shapes collectors prize most. On July 2, antique cuts and styles remained in demand even as many businesses closed for the July 4 holiday period. Large wholesalers that stayed open were still seeing memos convert into actual sales.

The pressure is clearest in the stones that anchor antique and estate pieces. Round diamonds in the 1 to 1.70 carat range, with F-I color and VS2-SI1 clarity, were moving well, while 1-carat rounds were in tight supply and 3-carat stones were very hard to find, especially in long fancy shapes. Rare categories and collection goods were performing better than commercial goods, a split that favors recognizable vintage designs, signed pieces, and jewels with clear provenance over anonymous modern inventory.

Cushion cuts, marquise diamonds, and Art Deco-era jewels keep surfacing in specialist sale rooms. The cushion cut remains one of the most enduring and versatile diamond shapes, while the marquise cut keeps drawing buyers looking for something vintage or distinctive for personalized rings. Christie's 2026 jewelry coverage features marquise-cut diamonds and Art Deco jewels.

Jewelry was one of the bright spots in luxury spending in 2025, and Bain Group expects personal luxury goods sales could rise by as much as 4% in 2026. Late last year, retailers and dealers invested heavily in antique and vintage jewelry as shoppers chased celebrity-collector glamour and “new to you” jewelry. Vintage brooches, pearl necklaces, old diamond cuts, and bold 1970s-style gold are part of the estate and antique mix.