The jewelry collection belonged to “one of society's most glamorous and beautiful women of the mid-20th century,” said the auction house.
Security Guards Under Investigation in Dresden Jewel Heist Case
German authorities are digging deeper into the theft of 18th-century royal jewelry from the Green Vault museum.

Dresden, Germany—The plot thickens as German authorities dig deeper into the November 2019 theft of invaluable 18th-century royal jewelry from Dresden’s Green Vault museum.
Four security guards employed at Dresden’s Royal Palace are under investigation for potential involvement in the heist, a spokesperson for the Saxon Police confirmed to National Jeweler.
“We do not know at this time whether the investigation into the four guards is a key to the solution of the case, but at this point we are following all leads,” said the spokesperson, adding that “urgent suspicion” has not yet been found and that the investigation will continue.
Investigators are looking at the two security guards who were on duty at the museum on the morning of the theft, believing they did not “react adequately” to the break-in and did not try to prevent it, as per a Guardian report, as well as the other two guards who are believed to have helped the thieves.
One of the guards thought to have been working with the thieves was arrested Nov. 29. The guard is believed to have passed along information about the layout of the museum and its security system.
The other is suspected of tampering with the museum’s alarm system, the Guardian reported.
The day of the heist, there was an electrical fire near the museum, which knocked out the streetlights as well as the lights in front of the window through which the thieves entered.
The guards on duty notified the police the morning of the theft after spotting two individuals entering the museum on video surveillance cameras.
Marion Ackermann, Dresden’s State Art Collections director, told reporters at a press briefing after the heist that it is standard security procedure at the museum to call the police in the event of a break-in rather than intervene.
Although officers arrived on the scene within minutes, the thieves already had sped off in a getaway car, Dresden Police Chief Joerg Kubiessa told reporters.
An unregistered Audi was found set on fire nearby in an underground parking lot, which police confirmed matched the description of the getaway car.
The Saxon police, who preside over the state
Investigators determined that it was a 2006 Audi S6 that was deregistered in 2017 and sold by a private seller in August 2019, just a few months before the break-in, to a young man who authorities believe is connected to the burglary. Authorities believe the car may have been repainted a different color shortly before the heist.
The man is described as around 25 years old with dark hair and a slim figure. Police have put out a sketch of the suspect.
After analysis by specialists from the State Criminal Police Office in Saxony, the public prosecutor and the police believe at least seven people were involved in the jewel heist, backed up by its investigation and video evaluations.
Investigators have received around 1,300 tips from the public and will be looking into them.
The police and public prosecutor have offered a reward of €500,000 ($564,000) for information leading to the arrest of the perpetrators.
SEE: The Jewelry Stolen from the Green Vault
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