Dallas—A “spectacular” Kashmir sapphire was the star of Heritage Auctions’ spring fine jewelry sale, which took place on Monday.

The 6.59-carat octagonal-shaped Kashmir sapphire set in a platinum ring realized $906,250 against an estimate of $300,000 to $600,000.

Kashmir sapphires come from the Zanskar Range of the Himalayas and are known for their “velvety” texture and iconic blue color.

The gem at the center of the sold ring presented royal blue in “a particularly pure expression,” the auction house said.

Another Kashmir sapphire, a 10.01-carat cushion-shaped stone set in a diamond-studded ring, also performed well at the auction, selling for $106,250.

Another top lot was a Cartier yellow diamond ring.

The platinum and 18-karat gold ring with a 20.03-carat fancy intense yellow diamond at its center sold for $625,000.

Also in the top 10, a Van Cleef & Arpels fancy intense yellow diamond ring sold for $156,250.

Other highlights included a 6.45-carat faint pink diamond that sold for $562,500 and a 4.93-carat light pink diamond that realized $500,000.

“This was one of those auctions where you could feel the excitement building from the start,” said Jill Burgum, Heritage’s executive director of fine jewelry.

“There was strong, confident bidding at every level, not just for the headline pieces, and that kind of energy is what drives a result like this.”

 The Heritage auction achieved a total of $9.7 million, marking the highest-grossing jewelry auction sale in its history, surpassing the previous record of $9.2 million set in September 2025.

The milestone underscores the sustained momentum and robust demand for rare, high-quality jewels, Heritage said.