Jim Springer, owner of Dunkelberger’s Fine Jewelry, is heading into retirement.
8-Carat Pink with $6M Estimate to Lead Christie’s Sale
The Magnificent Jewels auction in New York also features two pieces of jewelry by JAR.

New York--An 8.42-carat pink diamond ring is expected to lead Christie’s New York jewelry sale next month.
The cut-cornered rectangular modified brilliant-cut fancy intense pink diamond is VVS1 clarity and potentially internally flawless. It is flanked on either side by a tapered baguette-cut diamonds and mounted in platinum and rose gold.
It is estimated to sell for $4 million to $6 million.
Scheduled for April 17, the Magnificent Jewels auction has more than 200 lots, with estimates ranging from $4,000 to $4 million.
Beyond the pink diamond, highlights include two notable pieces by JAR, whose meticulously crafted jewels are renowned worldwide.
Born in New York City in 1943, Joel Arthur Rosenthal graduated from Harvard in 1966 before moving to Paris. He worked as a screenwriter and needle stitcher, as well as with Bulgari in New York, before moving back to Paris and opening a store on the Place Vendôme with his partner, Pierre Jeannet, for his jewelry creations.
His pieces are being sold in the Christie’s auction to benefit the Art for Justice Fund, which connects criminal justice advocates with artists to help reform the criminal justice system in the United States.
The first JAR piece is the “Moghul” pendant brooch pictured above, created in 1999 and set in silver and 18-karat gold.
The brooch was designed as a stylized bombé architectural turret and is pavé-set with circular-cut amethysts surrounding a 14.77-carat cushion-cut sapphire and a border of single-cut diamonds. It also has a single-cut diamond cap suspending a natural pearl tassel and the reverse side is set with pavé diamonds.
The piece has a detachable chain set with single-cut diamond stations and comes in a JAR pink leather case.
The brooch is estimated to sell for between $200,000 and $300,000.
The second JAR piece is a “thread” ring (pictured above), so named for the perceived lightness of the setting and fine pavé work.
It features an elongated oval brilliant-cut diamond weighing 22.76 carats and of D color and VVS1 clarity, and a diamond-set two-tiered threadwork gallery and hoop mounted in platinum. It also includes a JAR case.
The ring is expected to sell for $2.5 million to $3.5 million.
It was the highlight of the 2006 Magnificent Jewels auction at Christie’s New York, where it was offered as part of the collection of actress and film producer Ellen Barkin. At the time, it sold for
Other highlights of the upcoming sale include a selection of colored diamonds, white diamonds and gemstones, along with signed period and modern jewels from houses like Boucheron, Bulgari, Cartier, David Webb, Harry Winston, Tiffany & Co. and Van Cleef & Arpels.
Christie’s said the auction also includes five important blue diamond rings from “esteemed” private collections.
Below are some of the stand-out lots. To see all lots, visit Christies.com.
The Latest

When conducting its May consumer confidence survey, The Conference Board asked extra questions about consumers’ budgeting strategies.

The “Tunnel” charm, our Piece of the Week, celebrates Pride Month with its design inspired by hope and the light at the end of the tunnel.

As gold prices rise, today’s retailers are looking for alternatives at prices that will appeal to wider audiences.

The jewelry industry is reassessing its positioning as Gen Z reshapes the retail landscape and lab grown continues to gain market share.


The Miami-based fine jewelry brand will host its first summer residency in the Colorado mountain town from June 5 to Aug. 23.

The organization also announced its international board of directors for the 2026-2027 term.

With the trade and customer trust in mind, GIA® developed NextGem™ – on-demand training designed specifically for retail.

Saks Global confirmed the closure this week, spelling the end for a store that’s been part of downtown Dallas for more than 100 years.

Smith discusses how managers should handle a top performer's exit, warning that a poor response could have a lasting impact.

The Gemological Institute of America is now a 30 percent stakeholder in Tracr, the De Beers-backed blockchain for diamonds.

The retailer is bringing Rolex Certified Pre-Owned watches to five U.S. cities in 2026 for collectors to see, try on, and purchase.

The actress and entrepreneur stars in the jeweler’s new campaign that celebrates life’s quiet moments.

The price of gold has risen, affecting the number of pieces designers make, the materials they use, and how they position themselves.

The jewelry retailer is zeroing in on Zales, Jared, Kay Jewelers, and Blue Nile as it looks to create unique brand identities for each.

Dr. Akinwumi Adesina, a development economist, will head the fund created to help Botswana diversify its economy.

Sotheby’s has appointed the former Phillips executive as its global head of private sales and retail in its watches division.

From Gen Z’s view of luxury to “doom spending,” these are the six consumer trends to note this year.

The show started by honoring Mildred Marcano, ended with a tearful Beth Anne Bonanno, and recognized a dozen-plus designers in between.

The revamped online diamond marketplace will feature pricing intelligence and data-driven tools for more efficient buying and selling.

The miner said demand for higher-quality emeralds is stable, but there is notable caution in the market.

The “River of Heaven” necklace, our Piece of the Week debuting at Couture, combines 26 salt and pepper diamonds spaced by Tahitian pearls.

This year’s inductees include second-, third-, and fourth-generation jewelers.

The author, speaker, and entrepreneur will give his presentation, “Spiritual Billionaire,” on Saturday morning.

Three-time Grammy award-winning artist Nelly is set to perform at the annual event at Tao Beach on Sunday night.

Signet will integrate the online-only, natural diamond-focused jeweler into Blue Nile, which it wants to position as a higher-end retailer.

These up-and-coming jewelry brands are bringing their distinct aesthetic and unique point-of-view to the Design Atelier for the first time.
























